Tài liệu ôn thi AAMC MCAT test 6r
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Trang 3
Physical Sciences
Time: 100 minutes Questions: 1-77
Most questions in the Physical Sciences test are organized into groups, each containing a descriptive
passage After studying the passage, select the one best answer to each question in the group Some questions are not based on a descriptive passage and are also independent of each other If you are not certain of an answer, eliminate the alternatives that you know to be incorrect and then select an answer from the remaining alternatives Indicate your selected answer by marking the corresponding answer on your answer sheet A periodic table is provided for your use You may consult it whenever you wish
Trang 47
N 14.0
8
O 16.0
9
F 19.0
15
P 31.0
16
S 32.1
17
Cl 35.5
22
Ti 47.9
23
V 50.9
24
Cr 52.0
33
As 74.9
34
Se 79.0
40
Zr 91.2
41
Nb 92.9
42
Mo 95.9
51
Sb 121.8
73
Ta 180.9
74
W 183.9
83
Bi 209.0
106
Unh (263)
59
Pr 140.9
68
Er 167.3
91
Pa (231)
100
Fm (257)
Trang 5Passage I
Archaebacteria are often found in environments that
have extreme climatic conditions (e.g., in salt lakes or
in very acidic or alkaline hot springs) Most
archaebacteria are chemoautotrophs, bacteria that
obtain energy by a redox reaction For example,
methanogens produce methane by metabolizing CO2
The bond energy of C=O in CO2 is 803 kJ/mol, and the
C-H bond energy in CH4 is 414 kJ/mol
Table 1 gives some of the chemical species that
scientists find in environments where archaebacteria
The methane found in swamp gas is a byproduct of
methanogens, which are also found in a symbiotic
association with a variety of cellulose-digesting
organisms, including cows and termites Carbon-14
isotopic analysis even suggests that methane found
deep in the earth’s crust might have been produced by
archaebacteria
1 Scientists are most likely to find which compound
listed in Table 1 in an alkaline lake?
A ) NaCl
B ) CH3OH
C) H2SO4
D ) KOH
2 What pair of compounds found in Table 1 can form
extensive networks of intermolecular hydrogen bonds with both participating?
A) Methane and methanol B) Methane and glycine C) Glycine and methanol D) Methanol and carbon dioxide
3 How does an atom of carbon-14 differ from the
most abundant isotope of carbon?
A) By one protonB) By two protonsC) By one neutronD) By two neutrons
4 If an archaebacterial species lives in a pool that is
0.01 M HCl(aq), what is the pH of the water?
A) 12B) 6C) 2D) 0.01
5 Which of the following compounds has the same
geometry as methane?
A) H2SB) CO2
C) XeF4
D) SiCl4
6 Glycine passes through a very low pH membrane
channel in which form?
A) H2N-CH2-COOHB) H3N+-CH2-COOHC) H2N-CH2-COO-D) H3N+-CH2-COO-
7 Like oxygen atoms in methanogens, which of the
following elements can act as an electron acceptor?A) S
B) HeC) H2
D) Fe
Trang 6Sharing or reproducing this material in any form is a violation of the AAMC copyright 6
Passage II
The periodic table arranges the elements by atomic
number, aligning those with similar chemical
properties in columns A primitive version of the
periodic table was created by a Russian chemist in
1869, long before the electronic configuration of the
elements was known Dimitri Mendeleev grouped the
elements by their chemical properties and found that
the properties varied periodically with the atomic mass
Mendeleev left empty spaces for undiscovered
elements His genius was confirmed when the elements
that filled these blanks were isolated
Henry Moseley showed that periodicity is a function
not of atomic mass but of atomic number, as stated by
today’s periodic law The current periodic table
reflects this law In 1985, an international committee
numbered the columns in the periodic table from 1 to
18 and abolished the A and B designations for
main-group and transition elements
8 Which of the following atoms has the largest atomic
11 What is the mass number of the isotope of
bromine that has 44 neutrons?
A) 35B) 79C) 80D) 81
12 According to trends in electronegativity, which of
the following pairs of atoms is most likely to form
an ionic bond?
A) N and OB) C and FC) Ca and ID) Si and Cl
Trang 7Passage III
The Global Positioning System or “GPS” is based on
satellite radio ranging A transmitter aboard each of the
24 satellites sends out a radio signal that specifies the
precise position of the satellite and the precise time the
signal was sent The position is known from accurate
tracking by ground stations and the laws of orbital
mechanics, while synchronized cesium clocks aboard
each GPS satellite provide very accurate timing Each
satellite has a mass of 1000 kg and orbits Earth in a
circle = 1.8 x 107 m above the surface of Earth (2.4 x
107 m from the center of Earth) It takes 12.4 hours to
complete this orbit
The atomic clock is powered with a 5-g radioactive Cs
source The transmitter is powered by a 1.32-V
nickel-cadmium battery A radio receiver on Earth can be
used to calculate the distance to the satellite by
measuring the time difference between the broadcast
and reception because the signal travels at the speed of
light (3.0 x 108 m/s) When the distances to several
different satellites have been measured–at least four
satellites are visible from anywhere on Earth at all
times–the receiver position can be determined by
triangulation Timing corrections due to atmospheric
effects are usually accounted for by broadcasting the
GPS signals at two frequencies, one at 102.1 MHz and
another at 104.9 MHz
13 For a GPS satellite that is at an angle of 40o from
Earth’s horizon, it takes 0.07 s for the radio signal
to reach a receiver The distance between the
transmitter and the receiver is:
A ) 2.1 x 107 sin 40° m
B ) 2.1 x 107 m
C) 2.1 x 1011 cos 40° m
D ) 2.1 x 1011 m
14 A high-altitude GPS satellite is kept in a circular
orbit because Earth’s gravitational force:
A ) supplies the centrifugal force
B ) offsets the atmospheric drag force
C) offsets the moon’s gravitational force
D ) supplies the centripetal force
15 If a GPS satellite orbited at six times its present
distance from the center of Earth and was four times more massive, by what factor would the gravitational force between Earth and the satellite change?
A) Decrease by a factor of 9 B) Increase by a factor of 9 C) Decrease by a factor of 2/3D) Increase by a factor of 2/3
16 How much current from a Ni-Cd battery is drawn
by a radio transmitter that requires 3.96 W?
A) 1/9 AB) 1/3 AC) 3 AD) 9 A
17 What beat frequency is detected in a receiver on
Earth from the two GPS radio signals used to correct for atmospheric effects?
A) 0.7 x 106 HzB) 1.4 x 106 HzC) 2.8 x 106 HzD) 5.6 x 106 Hz
18 A GPS radio signal travels slower through Earth’s
atmosphere than it travels through the vacuum of space primarily because:
A) the atmosphere is warmer than the vacuum of space
B) gravity is stronger in the atmosphere than in space.C) the atmosphere steadily decreases the power in the radio signal
D) the atmosphere has a larger index of refraction than does the vacuum of space
19 How many years will pass before there are 0.625
grams of Cs remaining in the source, if Cs has a half-life of 175 years?
A) 525 yearsB) 650 yearsC) 700 yearsD) 1400 years
Trang 8Sharing or reproducing this material in any form is a violation of the AAMC copyright 8
Passage IV
Olestra, a sucrose polyester, is the brand name of an
approved dietary fat replacement The large-scale
synthesis of Olestra starts with a base-catalyzed
cleavage in methanol of the naturally occurring fats
(triacylglycerols or triglycerides) found in cottonseed
or soybean oils The reaction liberates glycerine and
converts the fatty acids into methyl esters (Figure 1)
As glycerine settles out, a plant worker draws it off and
separates the methyl esters from the remaining mixture
by distillation A reaction between these esters and
sucrose, common table sugar, in the presence of a basic
catalyst and emulsifiers at a high temperature liberates
methanol and produces crude Olestra The removal of
excess fatty acids and emulsifiers produces pure
Olestra
Normal edible fats contain three fatty acid units,
whereas Olestra, also a true fat, contains six to eight
fatty acid units bonded to the sugar backbone Olestra
is not metabolized because the additional fatty acid
units block the approach of digestive enzymes to the
cleavage sites
Because a calorie (1 cal = 4.185 J) is a very small unit
of energy, food scientists use the Calorie (1 Cal =
4,185 J) with a capital C A 1-ounce bag of potato
chips contains about 160 Cal A normal fat contains 9
Cal/g, whereas carbohydrates and proteins provide
about 4 Cal/g (Note: For water, the heat of fusion is 1.4 kcal/mol, the specific heat is 4.185 J/g•oC or 1 cal/g•oC, and the density is 1.0 g/mL at 15oC One kg equals 2.2 pounds.)
20 According to the passage, which of the following
compounds can the worker use to catalyze the cleavage of a triglyceride?
A) HCl(aq) B) NaCl(aq) C) NaOH(aq)
D) Na2SO4(aq)
21 What is the energy content in kcal of one peanut,
if the temperature of 1 kg of water in a calorimeter increases by 50oC upon the combustion of 10 peanuts?
A) 0.5 kcalB) 1 kcalC) 5 kcalD) 10 kcal
22 How many dietary calories does a 1-g sample of
Olestra contribute to a human consumer?
A) 0 CalB) 4 CalC) 5 CalD) 9 Cal
23 The boiling point of glycerine in comparison with
that of isopropyl alcohol, (CH3)2CHOH, is:
A) more than 10oC higher
B) less than 10oC higher
C) less than 10oC lower
D) more than 10oC lower
24 How many pounds (lb) of methanol does a worker
need if a reaction requires 20 moles of methanol? A) 0.003 lb
B) 1.4 lbC) 2.9 x 105 lbD) 1.4 x 106 lb
Trang 9
These questions are not based on a descriptive
passage and are independent of each other
25 Which of the following elements has the highest
With which of the above metals can copper form a
galvanic cell in which copper is reduced?
A ) With silver only
B ) With lead only
C) With lead and zinc
D ) With silver and zinc
27 Which of the following expressions correctly
describes the relationship between the frequency f
and the period T of a sinusoidal wave?
A ) fT = 1
B ) f/T = 1
C) f+ T = 1
D ) f– T = 1
28 Suppose that a ball is thrown vertically upward
from earth with velocity v, and returns to its
original height in a timet If the value of g were
reduced to g/6 (as on the moon), then t would:
A ) increase by a factor of 6
B ) increase by a factor of 61/2
C) decrease by a factor of 6
D ) decrease by a factor of 61/2
Trang 10Sharing or reproducing this material in any form is a violation of the AAMC copyright 10
Passage V
In 1622, a Spanish ship carrying a cargo of silver
crashed on a coral reef near Cuba and sank The ship
was laden with hardwood boxes of silver coins The
boxes came to rest on the ocean floor and began to
decay At first, aerobic microorganisms thrived but, as
the concentration of oxygen decreased, these
organisms died Subsequently, sulfur-loving bacteria
began to flourish
These sulfur bacteria consumed sulfate ions in
seawater and excreted the weak acid H2S, as shown in
standard reduction potential of +0.80 V One of the
products was a black precipitate of Ag2S and the other
was hydrogen gas, as shown in Equation 2
2 Ag(s) + H2S(aq) → Ag2S(s) + H2(g)
Equation 2
The hydrogen from this reaction provided additional
food for the sulfur microorganisms and accelerated the
corrosion of the silver coins When the silver coins
were completely coated with Ag2S, the corrosive
reaction stopped
Because the seawater contained small amounts of CO2
(the solubility of CO2 is 0.145 g/100 g H2O at 25oC and
1.00 atm), bicarbonate ions were formed by the
reaction shown in Equation 3
H2O(l) + CO2(g) H +(aq) + HCO3-(aq)
Equation 3
These bicarbonate ions combined with calcium to form
the insoluble CaCO3, which crystallized, encapsulating
the coins, sand, and decaying matter into rock-like
clumps The explorers who discovered the treasure
found these rock-like structures
29 The formation of Ag2S is an example of what kind
of reaction?
A) A combination reactionB) A decomposition reactionC) A single replacement reactionD) A double replacement reaction
30 What is the maximum number of grams of H2S that can be produced from 2 mol of sulfate ions by the reaction of Equation 1?
A) 68 gB) 34 gC) 96 gD) 192 g
31 To a first approximation, the ionization constant of
H2S is:
A) near zero
B) much less than 1
C) about 1
D) much more than 1
32 Sodium carbonate and calcium chloride are both
soluble in water Which of the following equations shows the net ionic reaction between these two compounds?
A) 2 Na+(aq) + CO32-(aq) → Na2CO3(s)
B) Ca2+(aq) + CO32-(aq) → CaCO3(s)
C) Na+(aq) + Cl-(aq) → NaCl(s)
D) Ca2+(aq) + Cl-(aq) → CaCl2(s)
33 What species is the reducing agent in Equation 2?
A) SB) H2SC) H+D) Ag
Trang 112-Passage VI
The physics of stringed instruments has been studied
for almost as long as the instruments themselves have
been played The most studied stringed instruments are
in the violin family This family consists of four
instruments: the violin, the viola, the cello, and the
bass Each of these instruments has four strings The
fundamental tones of these strings are separated by a
perfect fifth, which means the fundamental frequency
of each string is 2/3 that of the next higher frequency
string The tones are created when the bow is dragged
across the strings, a move called bowing
The violin is the most popular instrument in the family
Its strings are tuned with decreasing frequency to the
notes E, A, D, G, where A has a frequency of 440 Hz
The strings of the viola are at A, D, G, C The cello is
tuned one octave below the viola, which means the
frequencies of the cello strings are half that of the viola
strings Finally, the bass is tuned two perfect fifths
below the cello
The fundamental frequency f of a string is given by its
length L, tension T, and mass per unit length ρ as
f= (T/ρ)1/2/(2L)
Scientists have studied in great detail how violins
produce sound The best violins produce loud tones
over the full frequency range of the instrument,
whereas poor instruments do not Minor changes in the
thickness and density of the wood can produce
significant differences in an instrument’s sound
Despite much research, scientists have not been able to
create violins that sound as pure and clear as those of
the great violinmaker Stradivarius It seems that
despite all our scientific advances, there is still much to
learn about these musical instruments
34 By what factor would a string’s tension need to be
changed to raise its fundamental frequency by a
A) heavier wood in the violin
B) thicker wood in the violin
C) heavier strings on the violin
D) denser wood in the violin
36 A good violin body is one that has good resonance
at the fundamental frequencies of:
A) the middle strings
B) the highest frequency string
C) the lowest frequency string
D) all the strings
37 The fundamental frequency of the A string on a
Trang 12Sharing or reproducing this material in any form is a violation of the AAMC copyright 12
Passage VII
To model thermal motion of atoms in solids, let us
assume that each atom can oscillate about its
equilibrium position Interactions with neighboring
atoms hold it in place allowing most motion in a single
preferred direction marked by x in Figure 1 The effect
of the neighboring atoms is described, for small
oscillations, by two springs of length l as shown We
denote the atom’s mass by M Each spring is
characterized by the spring constant K, so that the
restoring force it applies on the atom is K|x| in
magnitude, and is opposite in direction to the
displacement x
The potential energy of each spring is given by Kx2/2
An atom oscillates back and forth between its maximal
displacements x = –A and A, with frequency f, where A
is the amplitude of the motion The time to complete
one oscillation is the period T Experimentally, such
solids have internal energy nR(t + 273), where n is the
number of moles in the sample, R = 8.3 J/(mol·oC) is
the gas constant, and t is the temperature in oC Usually,
A < l; the solid melts when the amplitude increases to l
(Avogadro constant is N = 6 x 1023 per mole.)
Figure 1 Model of an atom in a solid
39 What is the effective spring constant of the system
of two springs shown in Figure 1?
A ) have the same units
B ) are proportional to each other
C) are equal
D ) are the inverse of each other
41 The motion for small displacements x is
characterized by two dimensional constants, K and
M Identify by dimensional argument the correct
formula from which the period T can be
calculated
A) (T/π)2 = 4K/M B) (T/π)2 = 4K·M C) (T/π)2 = 4M/K D) (T/π)2 = 4/(K·M)
42 In the oscillatory motion of an atom described by
the model, what quantity is conserved?
A) Total energyB) Potential energyC) Linear momentumD) Angular momentum
43 The spring constant K can be computed from the
internal energy E int and the amplitude A computed
45 The present model is limited to solids Why can it
NOT describe monoatomic gases?
A) The atoms of a gas are not restricted to move near fixed positions in space
B) The spacing of atoms in a typical gas is much larger than that in a typical solid
C) Gases do not melt
D) Most gases are transparent
Trang 13Passage VIII
Inorganic compounds with ring systems that contain
alternating boron (B) and phosphorus (P) atoms can be
synthesized under anhydrous conditions Figure 1
shows the structures of compounds 1 and 2
Figure 1 Compounds 1 and 2
(R = isopropyl = iso-C3H7)
Equations 1a and 1b show the synthesis of Compound
1, which contains a four-membered ring, and Equation
2 shows the synthesis of Compound 2, which contains
Average B-N bond length (pm) geometry Ring
Geometry
of boron
Geometry
of phosphorus
as well as theoretical calculations on the hypothetical molecules H2BPH2 and HBPH
Table 2 Bond Order versus Bond Length
B-P Bond order
B-P Bond length (pm) Bond order B-N
B-N Bond length (pm) 1.0 190 1.0 142 2.0 181 2.0 130 3.0 165 – –
46 What formula is the same for compounds 1 and 2?
A) Valence-bondB) EmpiricalC) MolecularD) Structural
47 What is the maximum volume of PH3(g) that a
chemist can obtain from the reaction shown by Equation 1a, if 0.005 mol LiPH2 reacts with 0.002 mol R2NBCl2 at 0oC and 1 atm?
A) 0.672 mLB) 6.72 mLC) 67.2 mLD) 67.2 L
Trang 14Sharing or reproducing this material in any form is a violation of the AAMC copyright 14
48 Phosphine (PH3) has which of the following Lewis
sample of Compound 1 in the gaseous state varies
with temperature at constant pressure Where on
the graphic would a similar plot of a 1.0-g sample
of Compound 2 appear?
A ) Below the plot for Compound 1
B ) Above the plot for Compound 1
C) Precisely on top of the plot for Compound 1
D ) Intersecting the plot for Compound 1 at its
midpoint with an opposite slope
Trang 15
These questions are not based on a descriptive
passage and are independent of each other
50 Which of the following chemical species is NOT
isoelectronic with a neon atom?
A ) He
B ) F
C) Mg2+
D ) Na+
51 A mass is lifted from the ground to an altitude h1,
requiring work W1 The work to lift an identical
mass to an altitude h2 is W2 If h2 is twice h1, what
is the ratio of W2 to W1? (Note: Assume that the
force of gravity does not change between h1 and
52 Gas X has a density of 1.44 g/L and gas Y has a
density of 1.54 g/L Which gas diffuses faster?
A ) Gas X, because it has a lower molar mass than gas
53 A reaction is designed to produce ammonia from
the gas phase equilibrium of nitrogen and hydrogen
N2(g) + 3 H2(g) 2 NH3(g)
Introducing a catalyst into the system will cause the amount of ammonia at equilibrium:
A) to increase
B) to remain the same
C) to decrease
D) to change in a manner which depends on the value
of the equilibrium constant
54 A solid body can be in rotational equilibrium only
when:
A) it has zero angular momentum
B) it is in free fall
C) its external forces sum to zero
D) its external torques sum to zero
Trang 16Sharing or reproducing this material in any form is a violation of the AAMC copyright 16
Passage IX
The head of a comet in orbit around the sun consists of
a solid nucleus, typically of radius 10–100 km,
surrounded by a tenuous cloud of dust particles and gas
This cloud, or “coma,” conceals the interior of the
nucleus so that its size and nature can only be inferred
There are two models of cometary nuclei: (1) a rubble
pile, a loose agglomeration of rocks and gravel, or (2)
a dirty snowball, bits of rock held in a matrix of frozen
H2O, CH4, and NH3, called ices
Calculations based on Newton’s law of gravity do not
predict cometary orbits precisely There are
unanticipated slight deviations in their orbits These
deviations imply that nongravitational forces are also
involved The dirty-snowball model nicely explains
these effects: Sunlight warms the surface of the
nucleus, causing the various frozen solids to sublimate,
i.e., go directly from the solid phase to the vapor phase
without passing through the liquid phase As the gases
leave, they exert perturbing forces on the cometary
nucleus–much as an attached rocket engine would
The rubble-pile model does not explain the orbital
deviations; therefore it has generally been abandoned
However, when Comet Shoemaker-Levy 9 struck
Jupiter in July 1994, the theory was revived The
cometary fragments exploded considerably higher in
the atmosphere of the planet than predicted by the
dirty-snowball model, suggesting that the nucleus of
the comet was not very cohesive
Comets become visible to the unaided eye when, under
the influence of radiation and the steady outstreaming
of ionized hydrogen from the sun (the solar wind), the
coma forms and extends into a vast, long tail of gas
and dust However, nearly all of the mass of the comet
remains concentrated in the nucleus
55 The perturbing force resulting from sublimation in
the dirty-snowball model is accounted for directly
by which of Newton’s laws?
A) The law of inertia (Newton’s 1st law)B) The law relating force, mass and acceleration (Newton’s 2nd law)
C) The law relating action and reaction (Newton’s 3rd law)
D) The law of gravitation (Newton’s inverse-square law)
56 In the dirty-snowball model, does the perturbing
force on the comet due to sublimation act in any preferred direction?
A) No, because the nucleus tends to have a roughly spherical surface
B) No, because the sun radiates with equal intensity in all directions
C) Yes, more or less outward from the sun because of shadowing effects
D) Yes, more or less toward the sun because of the temperature gradient
57 In space, frozen H2O, CH4, and NH3 undergo sublimation because:
A) this is characteristic of hydrogen compounds
B) the pressure in space is extremely low
C) of the effectively zero-gravity environment
D) of bombardment by solar-wind particles
58 A dirty-snowball cometary nucleus would be
expected to disintegrate less readily in the atmosphere of Jupiter than a rubble-pile nucleus of the same mass would because:
A) a rubble-pile nucleus has only gravitational forces
Trang 1759 Because comets shine predominantly by reflected
sunlight, what one sees when viewing a comet is:
A ) the coma gas
B ) the coma dust
C) the tail gas
D ) the ices
60 What new information would help decide between
the two models discussed in the passage?
A ) Laboratory measurement of the melting points of
the ices
B ) Spectroscopic studies of the coma
C) Spectroscopic studies of the nucleus
D ) More precise observations of a comet orbit
Trang 18Sharing or reproducing this material in any form is a violation of the AAMC copyright 18
Passage X
A student conducts an experiment to determine the
solubility product constant, Ksp, for lead(II) iodide,
PbI2 The student adds an excess of PbI2(s) to a known
amount of water, heats the slurry to 50oC, stirs it for 10
min, and then allows the mixture to cool and
equilibrate at 25oC Equation 1 shows the equilibrium
that exists between the undissolved solid and the ions
supernatant solution to a flask containing an aqueous
mixture of nitric acid and potassium nitrite These
reagents convert the iodide in the solution into the
red-brown molecular iodine (Equation 2)
2 I-(aq) + 2 NO2-(aq) + 4 H+(aq)
I2(aq) + 2 NO(g) + 2 H2O(ℓ)
(Keq = 5 x 1015)
Equation 2
The student determines the absorbance of the iodine
solution at 525 nm and finds the corresponding iodide
concentration from a calibration curve that relates the
absorbance of iodine to the iodide concentration The
student averages the iodide concentrations of three
trials and determines the molar solubility, S, of PbI2(s)
in water to be 1.89 x 10-3 at 25oC
In a similar experiment, the student determines the Ksp
of lead(II) bromide to be 4.6 x 10-6 at 25oC
61 What equation shows the correct Ksp of lead(II)
iodide as a function of its molar solubility, S?
A ) Ksp = S
B ) Ksp = S2
C) Ksp = 4S3
D ) Ksp = S1/3/4
62 Will lead(II) bromide precipitate if the student
mixes a 0.0001 M solution of Pb2+(aq) with a
0.00005 M solution of Br-(aq)?
A) Yes, because the ion product exceeds the Ksp
B) Yes, because the Ksp exceeds the ion product
C) No, because the ion product exceeds the Ksp
D) No, because the Ksp exceeds the ion product
63 How many grams of lead(II) iodide are present in
100 mL of a saturated aqueous solution?
A) 0.0410 gB) 0.0871 gC) 2.470 gD) 8.71 g
64 According to the Keq for Equation 2, about what percentage of I-(aq) is converted into I2(aq)?
Trang 19Passage XI
A scientist uses an apparatus as sketched in Figure 1 to
measure the relative amounts of different nuclear
isotopes in a sample Atoms are ionized by removing
electrons A short pulse of ionized atoms is injected
into the region between two accelerating plates The
plates are separated by a distance d, and have a voltage
V between them When an ion of charge Q and mass M
is accelerated in this region, it acquires a kinetic
energy equal to the product of its charge and the
A sample of lithium atoms was measured Figure 2 shows a spectrum of the number of ions detected versus their time of flight The location of each peak depends on the mass and charge of the ion Peaks 3 and 4 are the peaks expected for the two, singly-ionized isotopes of lithium, 6Li+ and 7Li+, respectively
Figure 1 Isotope spectrometer
Figure 2 Time-of-flight spectrum
Trang 20Sharing or reproducing this material in any form is a violation of the AAMC copyright 20
66 In order to accelerate the ions in the correct
direction, the electric field in the region between
the two plates of the device in Figure 1 should be
directed toward:
A ) the top of the figure
B ) the bottom of the figure
C) the left of the figure
D ) the right of the figure
67 The 6 in 6Li refers to:
A ) the number of protons
B ) the number of neutrons
C) the number of protons plus the number of neutrons
D ) the number of protons minus the number of
neutrons
68 A decrease in the voltage between the two plates
in the device would cause what change in the
measured times-of-flight?
A ) Measured times would increase for each peak
B ) Measured times would decrease for each peak
C) Times for some peaks would increase, times for
others would decrease
D ) Measured times would not change
69 Assuming equal masses, how would the detection
times of 3H+ and 3He+ compare?
A ) 3H would have a longer flight time than 3He
B ) 3H would have a shorter flight time than 3He
C) 3H would have the same flight time as 3He
D ) The radioactive 3H would always decay before
detection
70 Which peaks in Figure 2 correspond to the
doubly-ionized lithium isotopes?
A ) 2, 3
B ) 2, 4
C) 1, 3
D ) 1, 2
71 Peak 5 in Figure 2 originates from a different
atomic species Given where the peak appears, and assuming that it corresponds to singly ionized atoms, we can say that atoms of this species probably have:
A) more protons and more neutrons than 7Li
B) more protons and fewer neutrons than 7Li
C) fewer protons and more neutrons than 7Li
D) fewer protons and fewer neutrons than 7Li
Trang 21
These questions are not based on a descriptive
passage and are independent of each other
72 Which of the following substances is most likely
to be more soluble in 1.0 M HCl than in 1.0 M
73 Which of the following statements best explains
why the intensity of sound heard is less when a
wall is placed between a source of sound and the
listener?
A ) Sound travels more slowly in a solid than in air
B ) The frequency of sound is lower in a solid than in
air
C) Part of the sound energy is reflected by the solid
D ) The wavelength of sound is shorter in a solid than
in air
74 Hooke’s law relates stress (force/unit area) and
strain (elongation/unit length) with Young’s
modulus Y by the expression, F/A= Y∆L/L
Suppose a mass M suspended by a wire of length L
and radius R stretches the wire by an amount ∆L
By how much will M stretch a wire of the same
material with double the length and double the
75 An electrochemical cell is designed to produce
pure copper from CuSO4 An increase in which of
the following cell conditions will most effectively
increase the rate at which pure copper is
produced?
A ) The concentration of SO42+(aq)
B ) The current of electricity
C) The size of the cathode
D ) The size of the anode
76 In a healthy person standing at rest, a comparison
of arterial blood pressure measured in the arm with that measured in the leg shows that the pressure in the leg is:
A) lower, because the blood flow rate is less
B) lower, because viscous flow resistance causes pressure loss
C) the same, because viscous pressure loss precisely compensates the hydrostatic pressure increase
D) greater, because the column of blood between the arm and the leg has a hydrostatic pressure
77 Electric power for transmission over long
distances is “stepped up” to a very high voltage in order:
A) to produce currents of higher density
B) to produce higher currents in the transmission wires
C) to make less insulation necessary
D) to cut down the heat loss in the transmission wires
Trang 22
Time: 85 minutes Questions: 78-137
There are nine passages in the complete Verbal Reasoning test Each passage is followed by several
questions After reading a passage, select the one best answer to each question If you are not certain of an answer, eliminate the alternatives that you know to be incorrect and then select an answer from the remaining
alternatives Indicate your selected answer by marking the corresponding answer on your answer sheet
Trang 23Passage I
In the years before the turn of the century, the
Mediterranean fleet, the cream of the navy, reached a
peak of Victorian splendor The great ships would
silently appear from over the horizon to manifest the
majesty and power of England Gold-encrusted
admirals came ashore to call on local dignitaries,
officers to attend balls, play polo, or hunt snipe Fierce
competition in sail drill gave way to equally passionate
competition among ships in races at fleet regattas or
timed coaling contests
The fiercest competition of all was in polishing the
ships Every metal surface in the Mediterranean fleet
blazed like the sun Battleship and cruiser crews
devoted enormous energy to burnishing the great guns
Massive armored watertight doors were taken off their
hinges and filed and rubbed until they gleamed–and
were no longer watertight On some ships, even the
ring bolts on deck were polished and fitted with little
flannel nightcaps to protect them from salt air between
inspections
This cult of brightwork originated in the need to keep
the men busy When sails gave way to steam, the time
given to tending the rigging, furling and mending sails,
straightening and coiling ropes was given instead to
polishing The process made men’s hands and clothes
filthy with metal polish, and as soon as salt spray hit
the gleaming metal, copper turned green again and
brass blue A sparkling ship reflected well on the
captain and his second in command, and commanders
spent large sums out of their private pockets, often far
more than they could afford “It was customary,” wrote
Sir Percy Scott, “for a commander to spend half his
pay in buying paint to adorn Her Majesty’s ships, as it
was the only road to promotion.”
Appearances were often deceiving “When I went to
sea in 1895,” wrote Vice Admiral K G B Dewar, “an
air of spic and span smartness became the criterion by
which ships were judged In my first ship the
basins in the gunroom latrine had to be polished till
they shone like mirrors, the doors being locked to
prevent them being used The Hawke glistened
but she was infested with rats which contaminated the
food, ran over the hammocks, and swarmed into the
gunroom at night.”
One aspect of shipboard life that no one worried much about was gunnery; the few officers who did worry were ridiculed as fanatics The most persuasive reason was that firing the guns spread dirt and grime Wrote Scott acidly, “the powder then used had a most deleterious effect on the paintwork, and one commander who had his whole ship enameled told me that it cost him a hundred pounds to repaint her after target practice.”
Gunnery could not be wholly avoided, as admiralty orders decreed that target practice be held once every three months “No one except the gunnery lieutenant took much interest in the results,” recalled Admiral Sir Reginald Tyrwhitt “Polo and pony racing were much more important than gun drill.” Nevertheless, the ammunition had to be disposed of On the designated day, the flagship hoisted the signal Ships then steamed off in all directions and did as they liked Many simply loaded the guns and pumped three months’ allowance
of ammunition at the horizon A few ships quietly dumped the shells overboard There was little risk;
admirals understood the nasty way the gun smoke dirtied a ship Indeed, when flagships engaged in target practice, their admirals often remained ashore to escape the din
78 Which of the following items of passage
information provides the LEAST support for the author’s thesis?
A) Hatch doors were not always waterproof
B) Unused ammunition was dropped overboard
C) Crews competed in the loading of coal
D) Areas of a ship were sometimes inaccessible to the crew
Trang 24Sharing or reproducing this material in any form is a violation of the AAMC copyright 24
79 Before the wooden-hulled sailing ships were
completely replaced by metal-hulled steamships,
the British fleet included hybrid ships with both
sails and steam engines The most reasonable
expectation on the basis of passage information is
that officers on these ships avoided using:
A ) the engines because of respect for the British
sailing tradition
B ) the engines because of concern about the effect of
smoke on the sails
C) the sails because of the sailors’ lack of training in
handling the rigging
D ) the sails because of enthusiasm for the efficiency of
the new technology
80 In 1904, a recently appointed first lord of the
admiralty attempted to improve the preparedness
of the navy despite strong opposition One could
infer from the passage that the reform proposals
D ) I and III only
81 Which of the following underlying reasons for the
practices described in the passage is the most
reasonable?
A ) A gleaming, majestic Mediterranean fleet had an
important political value
B ) The naval officers were following the misguided
demands of the queen
C) The admiralty wanted to avoid expenditures on
ammunition and repainting after gunnery practice
D ) The British navy was so superior to any other that
military drills were unnecessary
82 The author’s apparent point in referring to the
polishing of the ring bolts is that:
A) absurd measures were taken to preserve appearances
B) innovative methods were developed to meet distinctive challenges
C) beautification measures could interfere with function
D) naval standards were meticulous in the smallest details
83 If the passage information is correct, what
inference is justified by the fact that British warships functioned well in World War I, fifteen years after the period described?
A) The expertise of naval officers at the turn of the century compensated for the inadequate training of their crews
B) The battle conditions for which the navy had prepared at the turn of the century were those it encountered in the war
C) The complaints of gunnery officers about the preparation of their crews had been heeded
D) The navy of the German invaders had been trained
by the methods described in the passage
Trang 25Passage II
Party identification in the United States is a relatively
uncomplicated measure determined by responses to the
following questions:
Generally speaking, do you usually think of
yourself as a Republican, a Democrat, an
independent, or what?
(If R or D) Would you call yourself a strong (R),
(D) or a not very strong (R), (D)?
(If independent) Do you think of yourself as closer
to the Republican party or to the Democratic party?
As this self-identification measure of party loyalty is
the best indicator of partisanship, political analysts
commonly refer to partisanship and party identification
interchangeably Partisanship is the most important
influence on political opinions and voting behavior
Many other influences are at work on voters in U.S
society, and partisanship varies in its importance in
different types of election and in different time periods;
nevertheless, no single factor compares in significance
with partisanship
Partisanship represents the feeling of sympathy for and
loyalty to a political party that an individual acquires
(probably) during childhood and holds (often) with
increasing intensity throughout life This self-image as
a Democrat or a Republican is useful to the individual
in a special way For example, individuals who think
of themselves as Republicans or Democrats respond to
political information partially by using party
identification to orient themselves, reacting to new
information in such a way that it fits in with the ideals
and feelings they already have A Republican who
hears a Republican party leader advocate a policy has a
basis in party loyalty for supporting that policy, quite
apart from other considerations A Democrat may feel
favorably inclined toward a candidate for office
because that candidate bears the Democrat label
Partisanship may orient individuals in their political
environment, but it may also distort their picture of
reality
An underlying partisanship is also of interest to
political analysts because it provides a base against
which to measure deviations in particular elections In
other words, the individual voter’s longstanding
loyalty to one party means that, “other things being
equal,” or in the absence of disrupting forces, he or she can be expected to vote for that party However, voters are responsive to a great variety of other influences that can either strengthen or weaken their tendency to vote for their usual party Obvious variations occur from election to election in such factors as the attractiveness of the candidates, the impact of foreign and domestic policy issues, and purely local
circumstances These current factors, often called
“short-term forces,” may move voters away from their normal party choices
These ideas can also be used in understanding the behavior of the electorate as a whole If one added up the political predispositions of all the individuals in the electorate, one would have an “expected vote” or
“normal vote.” This is the electoral outcome to be expected if all voters voted their party identification
Departures from this expected vote in actual elections represent the impact of short-term forces, such as issues or candidates
Material used in this test passage has been adapted from the following source:
W.H Flanigan and N.H Zingale, Political behavior of the
American electorate ©1991 by Congressional Quarterly
84 According to the passage, one drawback of
partisanship is that it can:
A) cause voters to react to political information on the basis of their personal feelings
B) distort voters’ views of reality
C) orient voters in their political environment
D) make voters vulnerable to short-term forces
85 According to the passage, partisanship is of
interest to political analysts because:
A) it provides a base against which electoral fluctuations can be measured
B) it helps identify the short-term forces that affect voters’ decisions
C) it represents a relatively complex measure of party identification
D) it reveals the political climate in which an individual voter was reared
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86 According to passage information, which of the
following factors would be most likely to cause a
voter to choose a candidate from a party other than
the voter’s party?
A ) A local scandal involving officials of the voter’s
party
B ) Pressure from a political action committee
C) Opinions of the voter’s family members
D ) Campaign advertising by the opposing party
87 In 1952, despite a substantial Democratic majority
among U.S voters, a Republican president,
Dwight Eisenhower, was elected Given the
information in the passage, this result was
probably due to:
A ) a wholesale shift in party loyalty among registered
Democrats
B ) low voter interest in the campaign
C) personal qualities that made Eisenhower an
especially attractive candidate
D ) a lack of pressing domestic issues facing the
country
88 On the basis of information in the passage, one
would generally expect the content of a campaign
advertisement attacking an opposing candidate to
be received most favorably by:
A ) voters in the party sponsoring the ad
B ) voters disaffected by the political process
C) voters in the party being attacked in the ad
D ) independent voters
89 If the information is correct, one could most
reasonably conclude that, compared to partisan
voters, independent voters:
A ) care less about politics
B ) take longer to evaluate political information
C) are less susceptible to the influence of short-term
factors
D ) exhibit basically the same political behavior
90 According to the passage, the effect of short-term
forces on an election would be determined by measuring:
A) the political predispositions of all individuals in the electorate
B) the voters’ views on foreign and domestic policy
C) the state of the economy in the days preceding the election
D) the difference between election results and the voters’ party identifications
Trang 27Passage III
Words provide clues about their history when
etymology does not match current meaning Thus, we
suspect that emoluments were once fees paid to the
local miller (from the Latin molere, to grind)
Evolutionists have always viewed linguistic change as
a fertile field for meaningful analogies Charles
Darwin, advocating an evolutionary interpretation for
such vestigial structures as the human appendix and
the embryonic teeth of whalebone whales, wrote:
“Rudimentary organs may be compared with the letters
in a word still retained in the spelling but become
useless in the pronunciation but which serve as a clue
in seeking for its derivation.”
Scientists who study history, particularly an ancient
and unobservable history, must use inferential rather
than observational or experimental methods They
must examine modern results of historical processes
and try to reconstruct the path leading from ancestral to
contemporary words, organisms, or land forms Once
the path is traced, we may be able to specify the causes
that led history to follow this, rather than another, route
But how can we infer pathways from modern results?
In particular, how can we be sure that there was a
pathway at all? How do we know that a modern result
is the product of alteration through history and not an
immutable part of a changeless universe?
This is the problem that Darwin faced, for his
creationist opponents did view each species as
unaltered from its initial formation How did Darwin
prove that modern species are the products of history?
We might suppose that he looked toward the most
impressive results of evolution, the complex and
perfected adaptations of organisms to their
environments: the butterfly passing for a dead leaf, the
bittern for a branch, the superb engineering of a gull
aloft or a tuna in the sea
Paradoxically, he did just the opposite He searched for
oddities and imperfections The gull may be a marvel
of design; if one believes in evolution beforehand, then
the engineering of its wing reflects the shaping power
of natural selection But you cannot demonstrate
evolution with perfection because perfection need not
have a history After all, perfection of organic design
had long been the favorite argument of creationists,
who saw in consummate engineering the direct hand of
a divine architect A bird’s wing, as an aerodynamic marvel, might have been created exactly as we find it today
But, Darwin reasoned, if organisms have a history, then ancestral stages should leave remnants behind
Remnants of the past that do not make sense in present terms–the useless, the odd, the peculiar, the
incongruous–are the signs of history They supply proof that the world was not made in its present form Why should a general word for monetary
compensation refer literally to a profession now virtually extinct, unless it once had some relation with grinding and grain? And why should the fetus of a whale make teeth in its mother’s womb only to resorb them later and live a life sifting krill on a whalebone filter, unless its ancestors had functional teeth and those teeth survive as a remnant during a stage when they do no harm?
No evidence for evolution pleased Darwin more than the presence in nearly all organisms of rudimentary or vestigial structures, “parts in this strange condition, bearing the stamp of unutility,” as he put it “On my view of descent with modification, the origin of rudimentary organs is simple,” he continued “They are bits of useless anatomy, preserved as remnants of functional parts in ancestors.”
91 The passage suggests that creationists dislike the
idea that certain biological structures may be:
A) useless
B) nonadaptive
C) changeless
D) ornamental
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92 The passage states that the whalebone whale’s
teeth are:
A ) employed mainly for grinding food
B ) resorbed later in life
C) evidence that the whale is evolving into a newer
form
D ) used for sifting krill on a whalebone filter
93 The passage suggests that the “vestigial structures”
present in nearly all organisms were once:
A ) rudimentary
B ) nonadaptive
C) immutable
D ) functional
94 The discussion of the history of the word
emolument is primarily intended to support the
author’s claim that:
A ) language is a living structure
B ) history is useless to science
C) an organism’s ancestral history can be inferred
from the imperfections it retains
D ) changes in a word provide clues to its ancestral
history
95 The example of the “superb engineering of a gull”
is most relevant to the author’s assertion that a
perfect matching of an organism to its
96 On the sole basis of the passage, which of the
following structures could most readily be used as evidence for human evolution?
A) The brain, the body’s most highly developed organB) The opposable thumb, possessed by humans but not
by lower animals C) The tonsils, which may be removed without functional damage to the organism
D) The heart, which pumps the lifeblood throughout the bodies of vertebrates
97 Zoologists state that direct evidence of evolution
through natural selection can be found in the form
of fossils embedded in sedimentary rocks This
statement tends to challenge the author’s assertion
C) the world was not made in its present form
D) the origin of rudimentary organs is simple
Trang 29Passage IV
Within Mary Shelley’s novel Frankenstein, the world
is divided between the public realm and the private,
almost delusional, relation between Victor and the
monster, according to Jacques Lacan, a psychoanalytic
critic, between the symbolic and imaginary orders On
the one hand, there are Alphonse Frankenstein, dutiful
father and judge, the families of the Frankensteins and
the De Laceys, the possibility of Victor’s marriage
with Elizabeth, the responsible science of M Krempe,
and the operation of law in the trial of Justine and the
imprisonment of Victor All these exemplify in varying
degrees a social order rooted in patriarchal marriage,
legality, and genital (phallic) sexuality On the other
hand, there is the curious solitude of Victor and the
monster, neither of whom can ever belong to a family,
their endless fascination with each other, and their utter
incapacity to communicate their situation with anyone
else Victor’s obsession with this imaginary double of
the self, outside of society and language, compels him
to resist or attack his father, friend, and potential wife
whenever they threaten that self
The imaginary quality of Victor’s solitude is made
clear As a young scholar, Victor studies “neither the
structure of languages, nor the code of governments,
nor the politics of various states,” all subjects
associated with the symbolic order, but rather the
“physical secrets of the world.” Moreover, within the
physical sciences, Victor pursues an outmoded,
erroneous, semimagical science in defiance of his
father’s prohibition, as if replaying the Oedipus
complex in his intellectual pursuits In an unofficial,
magical nature, Victor hopes to recover the mother
who has died
Victor’s search for a substitute mother does not take
the normative Oedipal path Typically, the son
relinquishes his mother and desires a person who
resembles her Margaret Homans argues that in effect
the son seeks a substitute for the physical mother in the
realm of language or social relations Homans goes on
to propose that Victor’s development is quite typical,
because he attempts to recreate his mother in his
scientific, intellectual project and thus in the realm of
language
But the authorized figure for the mother is Elizabeth,
not the monster; her personality and biography almost
duplicate Caroline Frankenstein’s, as if she is in fact the perfect person to complete the Oedipal drama
Victor resists the seemingly inevitable marriage to Elizabeth, leaves home, and chooses another, forbidden erotic object: the mystery of the way nature works in “her” hiding places–the mystery of the feminine body That is, he chooses to take exactly the opposite of the typical path, spurning the social realm
in favor of the imaginary, bodily mother, whom he attempts to recover by creating the monster
This relation between the mother and monster is made clear in the episodes surrounding Victor’s going to the university The break from the family represents Victor’s entrance into the public world and his separation from his mother Thus her death immediately before his leaving is highly appropriate; it represents Victor’s accepting his place in the symbolic order Yet once he gets to the university he refuses to partake in authorized scientific activities and falls prey
to his longing for forbidden knowledge He identifies with his mother, recovering her body in his own body
as he attempts to become pregnant himself, to labor in childbirth, and to watch the child awaken, gesture, and attempt to speak As Ellen Moers has pointed out, this story of monstrous creation is thus a “birth myth” built around Mary Shelley’s own experiences with
pregnancy and childbirth
Material used in this test passage has been adapted from the following source:
D Collings, The monster and the imaginary mother: A Lacanian
reading of Frankenstein ©1992 by Bedford Books of St
Martin's Press
98 The author apparently believes that young men
normally resolve the Oedipus complex by:
A) defying their father and identifying with their mother
B) rejecting the symbolic order for the imaginary
C) leaving the matriarchy to join the patriarchy
D) leaving their mother and marrying someone like her
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99 The author hints that the fact of the novel’s having
been written by a woman indicates that its plot is:
A ) an argument for the magical powers of nature
B ) a denunciation of patriarchal attitudes
C) evidence of the novelist’s feelings about giving
birth
D ) a demonstration of women’s skill with symbolic
language
100 The passage suggests that family opposition to
Victor’s university studies results from his
D ) wish to protect Victor’s mother from knowledge of
his sexual motives
101 Assume that a later, revised manuscript of
Shelley’s Frankensteinis discovered The single
plot change that would most compromise the
author’s analysis would be that Victor:
A ) courts and marries Elizabeth
B ) nurses his mother into old age
C) is unable to animate the monster
D ) creates and marries a female monster
102 Apparently, the author’s preferred approach to
the interpretation of a novel is to concentrate on:
A ) the social attitudes of the intended readers
B ) the unconscious motives of the characters
C) the socio-historical context of the plot
D ) correspondences between the characters and the
novelist
Trang 31Passage V
Brand props have played a role in motion pictures for
many decades, appearing in films from the late 1940s
The practice of using incidental properties with
recognizable labels in films began casually
Brand-name items were simply donated, loaned, or purchased
for particular scenes to enhance their verisimilitude or
aesthetic qualities Today, brand placement, the
purposeful placement of commercial products within
feature films, is a multimillion-dollar business, driven
by the need of marketers to increase their media
options for product exposure
Brands can be integrated in a film in three ways: The
product itself may be used by an actor, a logo or
advertisement may be featured, or a sign may be
displayed in the background For placements that are
directly purchased, fees are usually based on a
hierarchy of product treatments Simple visual
exposure is the least expensive, verbal mention is
moderately priced, and character usage is the most
costly Brand-placement has obvious advantages for
marketers, giving them captive audiences,
demonstrating the acceptance of their product in
naturalistic contexts, and providing greater consumer
reach than traditional media, thus providing relatively
cost-efficient advertising For filmmakers, the
arrangement not only offsets production costs but
contributes to the realism of contemporary settings
A number of studies have used paid focus groups and
in-depth interviews to clarify the way audiences
interpret brand placements in relation to movies, movie
viewing, and social experience The results are
consistent Older informants consider the use of brand
props an innovation that changes their movie-going
experience They report feeling resistance, discomfort,
and concern In contrast, younger informants consider
the appearance of name-brand products in the story an
acceptable and expected part of the movie-going
experience and not a change For them, encounters
with familiar products are associated with feelings of
belonging, comfort, and security
These findings convey a clear and convincing message:
The success of brand props in exerting persuasive
effects is not a matter of what the placements do to
movie audiences but what the audiences do with them
The meaning and relevance of brands encountered in
films are not simply transmitted to viewers; rather, viewers interpret these props as part of their own everyday life, and in reflecting the viewers’ past, present, and anticipated experiences, the props come to life
Critics label brand placement deceptive and insidiously manipulative and want public officials to regulate or even to ban the practice One of our studies counters the critics’ argument and suggests that their charge is groundless Criticism of brand placement as a
deceptive practice is based on the premise that the appearance of brand props in movie scenes has a causal relationship to buying behavior Behind this premise is the assumption that moviegoers are unaware
of the persuasive intent behind placements and are nạve about the practice in general
But our interviews convincingly demonstrate that moviegoers are more sophisticated in their understanding of the practice than critics would have public policy officials believe As indicated by their own comments, moviegoers are active interpreters, not passive receivers, of movie presentations of brands
Furthermore, they are not influenced uniformly by these encounters, a finding that suggests a mitigating effect by other factors–e.g., perceived needs, self-image, past experiences, plot context, and demographic group–on any induced tendency to purchase the
product The audience awareness of the persuasive intention of brand props in fact promotes skepticism and resistance to their persuasive influence For various reasons, moviegoers may allow themselves certain indulgences in some buying situations, but they are not deceived into rushing out of movie houses to buy everything shown in a movie
Trang 32Sharing or reproducing this material in any form is a violation of the AAMC copyright 32
103 Which of the following forms of film placement
would be the most effective for marketing
purposes, according to passage indications?
A ) A favorable reference to the product by a major
character
B ) A large billboard advertising the product shown as
a backdrop to the action
C) A close-up shot showing the product as a
significant element in the plot
D ) A minor character shown casually using the
product
104 The author’s attitude toward brand placement in
motion pictures is most accurately described as:
A ) favorable
B ) neutral
C) mistrustful
D ) disapproving
105 According to passage information, the brand
placement phenomenon is growing primarily
because:
A ) marketers want alternative ways of advertising
B ) it lowers production costs for film companies
C) it helps directors to achieve realistic scenes
D ) increased sales result from the practice
106 According to the author, the general effect of
brand placement on film audiences is:
A ) a sense of psychological benefits from brand
recognition
B ) an acceptance of such displays as legitimate
advertising
C) a resistance to the intended effect on consumption
D ) a reluctance to attend films meant to sell products
107 What is the most serious apparent weakness of
the research described?
A) The participants were told that brand props have a commercial purpose rather than being asked their purpose
B) It differentiates participants on the basis of age rather than on socioeconomic status or belief system
C) The attitudes expressed were probably influenced
by those of others rather than reached independently
D) Its conclusions are based on the participants’
reports rather than on their buying behavior
108 Assume that a film includes repeated scenes
showing the trademark Voom on the sports shoes
of its attractive adolescent protagonists Although the film is successful among young audiences, no increase occurs in the sale of Voom shoes Which
of the following hypotheses about this outcome is the most plausible on the basis of the studies cited?
A) Audiences feel uncomfortable because Voom is an unfamiliar brand
B) Most members of the audience already own a pair
109 The wording of the passage suggests that the
studies described are most likely to have been conducted by:
A) a regulatory agency of the Commerce Department.B) a professional association of advertisers
C) an advocacy group for consumers’ rights
D) a group of experimental psychologists
Trang 33110 Suppose that immediately after a placement for
the Zog brand of widgets appeared in a very
successful film, sales of Zog widgets rose
dramatically If the author’s conclusions about
moviegoers are accepted, which of the following
conclusions about this buying must also be
accepted?
A ) The strangeness of seeing a brand prop excited
viewers into indulging in Zog widgets
B ) The film only reminded viewers that they already
intended to buy Zog widgets
C) The film influenced viewers to buy Zog widgets
without their awareness
D ) The buyers of Zog widgets were predominantly the
older moviegoers
111 If the following statements are true, which would
most weaken the argument of defenders of brand
placement?
A ) Shortly after a Western film attracts huge
audiences, sales of riding horses and ranch
properties increase appreciably
B ) A campaign to educate moviegoers about brand
placement has no observable effect on their
purchasing decisions
C) When moviegoers see a list of the brand props to
appear in a film before it begins, sales of those
products decline
D ) Moviegoers buy more popcorn when a promotional
film for the concession stand is shown than when it
is omitted
112 The author’s primary purpose in the passage is
apparently:
A ) to clarify the business arrangement between
marketing and the film industry
B ) to consider the generational difference in attitudes
about brand placement
C) to question the ethics of promoting products
without seeming to do so
D ) to justify the commercialization of feature films
through brand props
Trang 34Sharing or reproducing this material in any form is a violation of the AAMC copyright 34
Passage VI
England has had greater soldier-kings and subtler
diplomatists than Henry II, but no one has left a deeper
mark on British laws and institutions The names of his
battles have vanished with their dust, but his fame will
live with the English Constitution and the English
Common Law When Henry gained the crown in 1154,
twenty years of rebellion and anarchy had determined
him to curb baronial independence
In place of a multitude of manorial courts in which
local magnates dispensed justice, the quality and
character of which varied with the customs of the
neighborhood, Henry planned a system of royal courts
that would administer a law common to all of England
The policy was not without peril The king was wise
enough to know that to lay a finger on the sanctity of
customary rights would provoke disaster Faced with
this barrier, Henry shrewdly stretched old principles to
new meanings and cloaked innovation in the respected
garb of conservatism
But if Henry was to pose as a conservative in the legal
sphere, he must be consistent Compulsion could play
little part in his program; it had to be the first principle
of his policy to attract cases to his courts rather than to
compel them A bait was needed with which to draw
litigants to the royal courts; the king must offer them
better justice than they could have at the hands of their
lords Henry accordingly threw open to litigants in the
royal courts a startling new procedure–trial by jury
Until then, both civil and criminal cases had been
decided through the oath, the ordeal, or the duel, all of
which left small room for debate on points of law In a
more rational age, the English were beginning to
distrust such antics Thus trial by jury quickly gained
favor
The jury of Henry II was not the jury that is now used
Its members were witnesses as well as judges of the
facts Jurors were not yet picked for their impartiality
but because they were most likely to know the truth
The modern jury, which knows nothing about the case
to be heard until it is presented in court, was slow in
coming The process by which the modern jury
evolved is obscure A jury summoned to Westminster
from distant parts might be reluctant to come, and
perhaps only three or four would arrive The court
could not wait, and to avoid delay and expense, the
parties might agree to rely on a jury of bystanders In time, the designated jurors with local knowledge would cease to be jurors at all and would become witnesses, giving their evidence to a jury composed entirely of bystanders Such, we may guess, was what happened Very gradually, as laws of evidence evolved, the change came By the fifteenth century, it was under way; yet even under the Tudor kings, jury members might be tried for perjury if they gave a wrongful verdict
The jury system has come to stand for all that is meant
by English justice, because if a case has to be scrutinized by twelve honest citizens, defendant and plaintiff alike have a safeguard against arbitrary perversion of the law It is this safeguard that distinguishes the law administered in English courts from Continental legal systems, which are based on Roman law Thus, amidst the great process of centralization, the old principle was preserved, and endures to this day, that law flows from the people and
is not given by the king
113 If the “disaster” referred to in the passage had
occurred, what would have been its most likely major manifestation?
A) Litigants would have refused to bring their cases to the royal courts
B) Citizens would have proclaimed their right to be tried by an impartial jury of their peers
C) Regional lords would have joined forces to challenge the king’s authority
D) The tradition of determining guilt through oaths, ordeals, and duels would have gained strength
114 The Tudor practices described in the passage
most clearly conflict with the modern legal
practice of:
A) appealing to a higher court
B) being tried by an unbiased jury
C) being required to serve on a jury
D) testifying under oath
Trang 35115 What is the relation of other passage information
to the assertion that the jury system provides a
safeguard against arbitrary perversion of the law?
A ) The implication that Henry wanted to extend his
power undermines it
B ) The difference acknowledged between the medieval
jury and the modern one weakens it
C) No other statement in the passage directly concerns
it
D ) The contrast drawn between Henry’s system and
manorial courts clarifies it
116 What assumption is implicit in the phrase “as
laws of evidence evolved”?
A ) Those who are unfamiliar with a case are better
jurors than are those who give testimony
B ) Originally, witnesses at a trial were not required to
testify under oath
C) Verdicts should be decided by citizens and not be
given by the king
D ) Henry’s jury system introduced new sources of bias
into the administration of the laws
117 The passage suggests that its author would
probably disagree with which of the following
statements?
A ) Justice is better served when rulers are restrained
by a constitution than when their authority is
undefined
B ) Juries are more susceptible to manipulation and
pressure than are respected authorities
C) Strengthening a nation’s legal system is more
important than strengthening its police force
D ) Judgments based on national laws are more apt to
be fair than are those based on regional customs