题目内容
假设两颗“近地”卫星1和2的质量相同,都绕地球做匀速圆周运动,如图所示,卫星2的轨道半径更大些。两颗卫星相比较,下列说法中正确的是
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250013290776397.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250013290776397.png)
A.卫星1的向心加速度较小 |
B.卫星1的动能较小 |
C.卫星1的周期较小 |
D.卫星1的机械能较小 |
CD
试题分析:卫星做匀速圆周运动,万有引力充当向心力,由
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329093848.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329109720.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329124418.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329124451.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329140902.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329155742.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329171447.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250013291871094.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329202967.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001329218452.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
题目内容
A.卫星1的向心加速度较小 |
B.卫星1的动能较小 |
C.卫星1的周期较小 |
D.卫星1的机械能较小 |