高一【物理】期中考试真题-答案.pdf

2022～2023学年第二学期高一年级期中质量监测

物理参考答案及评分建议

一、单项选择题：本题包含10小题，每小题3分，共30分。

题号12345678910

选项BBDACABCCD

二、多项选择题：本题包含5小题，每小题3分，共15分。

题号1112131415

选项BDBCBDADBC

三、实验题：共14分。

16.（6分）

（2）相同（1分）B（1分）

（3）1:2（2分）1:4（2分）

17.（8分）

（1）匀速直线运动（2分）自由落体运动（或匀加速直线运动）（2分）

（2）0.050（2分）1.0（2分）

四、计算题：共41分。

18.（7分）

航天器在地、月间飞行时，受到的引力大小与地球、月球半径无关。

设地、月间距为d,航天器质量为m受到地球、月球的引力大小相等时，

它到月心距离为，与地心距离为。

地=月···········································································（3分）

=············································································（1分）

地月

+=··············································································（1分）

3.8×·············································································（2分）

19.（7分）

（1）当B绳刚伸直，不受到拉力作用时，两绳与杆构成直角三角形，

设此时角速度为ω，绳A与竖直方向夹角为θ

0

mgtanθm···········································································（1分）

tanθ······················································································（1分）

r5L

ω0··················································································（1分）

（2）设此时，绳A对小球的拉力为F,B绳对小球的拉力F,

AB

Fsinθ+Fm······································································（2分）

AB

Fcosθmg················································································（1分）

A

FB··················································································（1分）

20.（7分）

（1）运动员在圆弧最低点B，应用牛顿运动定