2012年人教版高中物理必修二6.2太阳与行星间的引力练习卷(带解析)

适用年级:高一
试卷号:168187

试卷类型:课时练习
试卷考试时间:2017/8/15

1.选择题(共1题)

1.

阅读短文,根据短文内容从各题所给的四个选项中选择最佳选项。

    When I was twelve years old, I went with my dad to his work — a car showroom. I was walking 1 carelessly and saw a poor woman with a child beside her standing outside the showroom. I saw that she was crying and went inside to tell my father. He went out and asked the woman to come into the 2. He offered her some water and then asked her what was wrong.

   The woman said that her 3 had died and she didn't have anyone else in her family who could help her. She did some manual (体力的) labor to earn some money to take care of her daughter but the child was 4 for the last three days and she was unable to go to work. Now she didn't have a grain of food to eat. While she was telling this story to my father, she was unable to control  her emotions (情绪) and started 5 again. My father and I were deeply moved by her story. 

    We got some food for her and her child. My father then took them to the nearest 6 for her child to be treated as she did not seem to be very well. On the way, we 7 her a 5kg-bag of wheat from the market. My father gave her some money before we left. The lady was so grateful.

    It is eight years later, but that event is still very  8 in my mind. My father's kindness to this woman moved me greatly and since then, I have 9 to try and walk a similar path and serve others. I'm happy to see so many other people in this world are also ready to help others when they meet people in 10. They have chosen to walk a service path also.

2.多选题(共1题)

2.
关于太阳与行星间的引力,下列说法中正确的是(  )
A. 由于地球比木星离太阳近,所以太阳对地球的引力一定比对木星的引力大
B. 行星绕太阳沿椭圆轨道运动时,在近日点所受引力大,在远日点所受引力小
C. 由F=G可知,G=,由此可见G与F和r2的乘积成正比,与M和m的乘积成反比
D. 行星绕太阳运动的椭圆轨道可近似看作圆形轨道,其向心力来源于太阳对行星的引力
试卷分析
  • 【1】题量占比

    选择题:(1道)

    多选题:(1道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:1

    7星难题:0

    8星难题:0

    9星难题:0