题目内容
某同学利用如图甲所示的装置测量某一弹簧的劲度系数,将该弹簧竖直悬挂起来,在自由端挂上砝码盘。通过改变盘中砝码的质量,测得6组砝码的质量
和对应的弹簧长度
,画出
一
图线,对应点已在图上标出,如图乙所示。(重力加速度
)
①采用恰当的数据处理,该弹簧的劲度系数为
。(保留3位有效数字)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250011241215415.png)
②请你判断该同学得到的实验结果与考虑砝码盘的质量相比,结果 。(填“偏大”、“偏小”或“相同”)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001123996333.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001124012280.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001123996333.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001124012280.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001124059623.png)
①采用恰当的数据处理,该弹簧的劲度系数为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001124074454.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250011240904111.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250011241215415.png)
②请你判断该同学得到的实验结果与考虑砝码盘的质量相比,结果 。(填“偏大”、“偏小”或“相同”)
①3.44 ②相同
试题分析:根据
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001124137722.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001124152782.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250011241681552.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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