高二物理答案.pdf

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渝东六校共同体高2024届(高二上)联合诊断性测试

物理参考答案及评分参考标准

10431748105

一、选择题(小题,共分,其中到题选对得分,到选全得

30

分,选不全得分,有错得分。

题号12345678910

答案CABDACDBCADACD

18

二、实验题(共分)

11.(4分)

(1)2【1分】(2)相反【1分】(3)4104【2分】

12.12

(分)

10.644~0.6472

()【分】

20.61312

()【分】【分】甲【分】

UD2

33

()【分】

4IL

43

()电表读数误差【分】

13.1012V2-1V3200V/m

(分)();();(),方向沿电场线斜向下

16

【详解】()由题意可知,静电力做负功WAB210J

W

据UABAB············································································(2分)

q

得UAB2V·············································································(1分)

根据U·····································································(1分)

ABAB

则U1V································································(1分)

BAAB

222·············2

()沿着电场方向的位移为d210cos60m110m(分)

U

EAB200V/m···································································(2分)

d

······························································1

方向:沿电场线斜向下(分)

-5-5

14.1211×10C21.7×10C30.1s

(分)()(

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