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Đề thi Olympic vật lí 10 lần thứ XIII tại thành phố Huế

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SP]8^MDb>%#H".=N<c1d.Eefb>%#H8 S]gV#$/E[N8a#,BE%1'P#%:e CC8^([1<VE1`B[N1aB>`hMDb >%#H".=N<c1d.Eef>%#S#<VLNi 89j[CC-1*C% 8T[K)CCb1EE Câu 3 (4 điểm):'K.CP0<L1<L#H.E'>%>EZ/P[8 ka.$13MP0<L_.E.C.=.;0.  5M>`3-@"b .C/a_.=.;0.  l.  513G%$(.C8 ^.;0.b.C%"P13G%$(8m)ae)b.C10.= 13PNY'.E.;0b138n;N;1A?>K#D8 Câu 4 (4 điểm):T.$.EMP0<L.E 0.=,'oGM1'dP.E:>E e$  8nFD0//oG.E#Y <5.6.E(%G(#Y.=.;0Mω8 T/#<LP"C#$85.2#^ ,b.$.EP)CUB8 Câu 5 (4 điểm7i     T T p 9'0a>Dg,1<Lf.= $E,SNqdK1<L0 .=oG<5.681*oGPa >3/CN"KP^USN,CN"K$ EN  8r)CUNET.E , S  :>E5#Y8C>Y$N dS'ep1AM%A1'``"$N)^pPNdS>`3- $N)b0#Y8 ĐÁP ÁN Đáp án câu số : 1 Đáp án Điểm 9?0af-@Ncd m? v  E.;0b()*P $1a1j$ sN>Y12;)Ef S S S SS S  SS  glvv l mg mvmv −=⇒== gP#V/()*%A1' <.;QG$.= v  3.=N< 'MJt  8 uH#Yi  % \v const g = S S h. % \.v t g S S h%\.v S J S gt g r3i%\⇒\ g vSS w;0()*%#<=.3i. % \.v =⋅ g vg SS S S v. x.31EF/$".3.;0()*>?HE v  $3%A1'<#$8 r)CU*.3$aNU.E@$E \ g vSS uH#Yi  G \ const g = S S h. G \i()*%A1'>*1: y[1<V11<L>?HG"C.3$aNi G  iG S iG z i{\iziti{i4Sv7 G  \ S   G  S \ g glv 7S4SS S  − OA()*#1B1Ai G  uG S u{uG  \|uzutu{u4Sv7}G  \ S G  \ ⇔ g glv 7S4SS S  −  S \ ⇒.  \ ( ) S S SS J n gln + 4điểm /t /St /St /St /t /St /t /t /St /St /St      v     g  /St Lưu ý: ka?"j^)#<VLNi.;"P#V"6#%G0/d .=\iS1A8 Câu 2.1 (2 điểm) neNC1'^e"CC>Y$JC-1*E p N1 \~ " \P8 > 8]S\J8 z k m0e13EE131<Li  G \p N1 ]\p N1 ]4 > u  7\/W]" S  V_Ki w  \.  u8  •  \.  ] G \W€/J"4%NBt%7 mMD α b>%#H.Eef>% x%#H2D.:N^"4".=.;07 uw5#K+".=$P)<-1a0bE u#D(a_.=E/.;2C>Ybzei Mi α \p ( ]q\8 G ]8\/W • α \/J1' @PCMi9" α \q]•\8]" α \8S/Sk4.67 Câu 2.2 (3 điểm) i#<VLN[-1*C%inBE%E%A1';>*1: um0bEi  \v~ " ]\vP8 > 8]   \v/J]" S  uP>`.;0bE,P g  \v.  S ]S8  \/Sz umMDi α  \  ]\/J • α  \W/€W1'>%#HD.:N^#<= unef>%i" α  \q]  •  \S/€tk45.67 ir[K)CC um0bEi S \v~ "S ]\vP84 > u  78] Câu 3i r.;013E.  /"PG%$(/13.EKR•%A1'.=.;0. / 8sN>Y 12;)E1'<L.Ef<LMi . \ 4u7. / 88847 S  .  S \  S  4u7. S uy4S7 yi9be)aED 47/4S7 ⇒ y\ S  .  S v S  4u7 S  8.         + . N p (  α y\ S  . 7S4  + 888884z7 r13M.;0.  l.  8m?. S E.;013"PG%$(KR8 <eMi . \ .u. S ⇒  . S\ .  v .   88884J7 y888884t7. S  . S  . S  S S SS  ++= %4z7/4J7.E4t7"%#i  S  S  SS  .8   .     . + +       −+=   74 . .8  . S. S S  S  S = + + + −⇒ m)N<#51<Li 7 .4   . S  S  −± + = ka?>Ku/%.E4J7"%#i 7 .4   .  . . S  S  S  S  S −+ + =< + −− = O:E%.‚.5.;013"PG%$(RPA+.;0KR8x1M ?i 7 .4   . S  S  −− + = Đáp án câu 4: Đáp án Điểm r.;013E.  /"PG%$(/13.EKR•%A1' .=.;0. / 8sN>Y12;)E1'<L.Ef<LMi . \ 4u7. / 88847 S  .  S \  S  4u7. S uy4S7 yi9be)aED 47/4S7 ⇒ y\ S  .  S v S  4u7 S  8.         + y\ S  . 7S4  + 888884z7 r13M.;0.  l.  8m?. S E.;013"PG%$(KR8 /St /St /t <eMi . \ .u. S ⇒  . S\ .  v .   88884J7 y888884t7. S  . S  . S  S S SS  ++= %4z7/4J7.E4t7"%#i  S  S  SS  .8   .     . + +       −+=   74 . .8  . S. S S  S  S = + + + −⇒ m)N<#51<Li 7 .4   . S  S  −± + = ka?>Ku/%.E4J7"%#i 7 .4   .  . . S  S  S  S  S −+ + =< + −− = O:E%.‚.5.;013"PG%$(RPA+.; 0KR8x1M?i 7 .4   . S  S  −− + = /St /St /Wt /t /t /St /t Đáp án câu 5 Điểm O:PD,i q"#CiN  gƒNgƒPG\ 47 G1'>2%AbN"#C/NCN"KP^UN"8 q"N)ipuNgƒN  g\ 4S7 O2;iN  gT\N4STƒG7g 4z7 `4z7 xH Hp p − =⇒ S  4J7 `47.E4S7⇒p\PG/%.E4J7i FkH kHp p − =⇒ S  8%.E4S7 7S4  S =++−⇒ SkHpFkHSpF q<#5MDEi SS SS  JS Hk Sp kH Sp F +±+= /t /t /t /t /t /t /t /t .    ω KY ̀ THI OLYMPIC TRUYÊ ̀ N THÔ ́ NG 30/4 LÂ ̀ N THƯ ́ XIII TA ̣ I THA ̀ NH PHÔ ́ HUÊ ́ ĐÊ ̀ THI MÔN VẬT LÝ LỚP 10     . :   ! "  #$   ! %#$$ &  (Đề thi có 2 trang) Câu 1(4 điểm): '()*+,-$ ./012345.678

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