... đ)------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ĐÁP ÁN CÔNG NGHỆ 8Phần I. Tự luận(5 đ)A. Mỗi câu đúng 0,4đ(4đ)Đề A. 1d, 2c, 3b, 4c, 5b, 6b, 7c, 8c, 9c, 10 b.Đề B. 1c, 2b, 3c, 4d, 5c, 6b, 7c, 8b, 9b, 10 c.B. Mỗi từ điền đúng 0,5đ (1 )Câu 11 :- ... thuật điện.7(0,4) 1 câu(0,4)Tính toán điẹnn năng tiêu thụ trong gia đình8(0,4), 9(0,4) 10 (0,4) 3 câu (1, 2)TỔNG HPTN 1, 6đTN 2,6đ TN 0 ,8 + TL 5 13 Câu 10 đMA TRẬN HAI CHIỀU CÔNG NGHỆ 8 Ề ANỘI DUNG ... trong nhà.4(0,4) 13 (3) 2 câu(3,4)Đồ dùng điện:đèn sợi đốt, động cơ điện, máy biến áp.3(0,4) 9(0,4), 11 (1) 6(0,4), 12 (2) 5 câu (4,2)Điện năng. 8( 0,4) 1 câu(0,4)An toàn điện 1( 0,4) 1 câu(0,4)Vật...