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山西省太原市2024-2025学年高一下学期期中考试物理PDF版含答案_2024-2027高一（7-7月题库）(1)_2025年05月试卷_0507山西省太原市2024-2025学年高一下学期期中考试

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1
2024～2025 学年第二学期高一年级期中学业诊断
物理参考答案及评分建议
一、单项选择题：本题包含7 小题，每小题4 分，共28 分。
二、多项选择题：本题包含3 小题，每小题6 分，共18 分。
题号
8
9
10
选项
BD
BC
BD
三、实验题：共16 分。
11.（7 分）
（1）1.0 （2 分）
（2）3.9 （3 分）
（3）10 （2 分）
12.（9 分）
（1）0.30 （3 分）
（2）10 （3 分）
（3）1.7（3 分）
四、计算题：共38 分。
13.（8 分）
设地球质量为M，月球质量为m1，苹果质量为m2 ，地球半径为R ，则月球与地球中心距
离r = 60R
对月球，由万有引力提供向心力
··········································································（3 分）
对苹果，由万有引力等于重力
··········································································（3 分）
题号
1
2
3
4
5
6
7
选项
C
C
C
B
A
D
B
2
··························································· （2 分）
14.（12 分）
（1）汽车在A 点对桥面压力为0 ，重力提供向心力
················································································(2 分)
汽车从A 点做平抛运动，
竖直方向
······································································· (2 分)
水平方向
····································································· (2 分)
····································································(1 分)
········································································ (1 分)
（2）汽车在C 点对桥面压力为0，重力沿半径方向分力提供向心力
······················································ (2 分)
······················································· (2 分)
15.（18 分）
（1）小物块P 在A 点时摩擦力恰好为0，此时小物块只受重力mg 和陶罐对它的支持力N。
将支持力N 沿水平和竖直方向分解
竖直方向
······························································· (2 分)
水平方向
····················································· (2 分)
················································································(1 分)
（2）小物块有沿罐壁向上滑动的趋势，此时小物块受重力mg 支持力N'和摩擦力f
竖直方向
·················································· (2 分)
水平方向
······································· (2 分)
··············································································· (1 分)
方向沿罐壁向下············································································(1 分)
3
（3）当角速度最小时，小物块有沿罐壁向下滑动的趋势，摩擦力方向沿罐壁向上
竖直方向
··········································(2 分)
水平方向
······························· (2 分)
················································································ (1 分)
················································································(2 分)
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