[题目]在“DIS验证牛顿第三定律实验中.把两个传感器的挂钩钩在一起.向相反方向拉动.得到如图乙所示的图线.(1)请在上述空格填上传感器名称.根据图线能得出的结论是 .A．作用力和反作用力性质相同B．作用力和反作用力同时存在同时消失C．作用力和反作用力大小相等方向相反D．作用力和反作用力分别作用在两个物体上题目和参考答案——青夏教育精英家教网—

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【题目】在“DIS验证牛顿第三定律”实验中，把两个传感器的挂钩钩在一起，向相反方向拉动，得到如图乙所示的图线。

（1）请在上述空格填上传感器名称。

（2）（多选题）根据图线能得出的结论是。

A．作用力和反作用力性质相同

B．作用力和反作用力同时存在同时消失

C．作用力和反作用力大小相等方向相反

D．作用力和反作用力分别作用在两个物体上

【答案】（1）力（2）BC

【解析】（1）在“DIS验证牛顿第三定律”实验中，把两个力传感器的挂钩钩在一起，向相反方向拉动，得到如图乙所示的图线．

（2）观察分析两个力传感器的相互作用力随时间变化的曲线，可以看出作用力与反作用力一定大小相等，方向相反，作用力与反作用力大小一定同时变化，故选BC。

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