题目内容
物理课外小组研究用“单摆测重力加速度”的实验,他们依照实验直接测量的物理量应为: , , ,计算g的公式应为: 。
摆线的长度
;摆球的直径
;摆球完成
次全振动所用时间t;![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716697974.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716447285.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716650327.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716681304.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716697974.png)
单摆周期计算公式
,所以“单摆测重力加速度”,需要测得摆长L(摆线长度与摆球半径之和),周期T(摆球完成
次全振动所用时间t,周期为
),计算g的公式应为:![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716697974.png)
故答案为:摆线的长度
;摆球的直径
;摆球完成
次全振动所用时间t;![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716697974.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716728730.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716681304.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716759514.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716697974.png)
故答案为:摆线的长度
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716447285.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716650327.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716681304.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123716697974.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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