【判断题】【消耗次数：1】
力的作用线若通过矩心，则力矩为零。 （）
①
正确
②
错误
参考答案：
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相关题目
【单选题】
关于力对点之矩的说法，（ ）是错误的。
①
力对点之矩的大小与力的大小有关，而与力的方向无关
②
力对点之矩不会因为力矢沿其作用线移动而改变
③
力的数值为零，或力的作用线通过矩心时，力矩均为零
④
互相平行的两个力，对同一点之矩的代数和为零
【单选题】
关于力对点之矩的说法，（ ）是错误的。
①
力对点之矩的大小与力的大小有关，而与力的方向无关
②
力对点之矩不会因为力矢沿其作用线移动而改变
③
力的数值为零，或力的作用线通过矩心时，力矩均为零
④
互相平行的两个力，对同一点之矩的代数和为零
【单选题】
下列说法中哪个或哪些是正确的（）。 （1）作用在定轴转动刚体上的力越大，刚体转动的角加速度应越大 （2）作用在定轴转动刚体上的合力矩越大，刚体转动的角速度越大 （3）作用在定轴转动刚体上的合力矩为零，刚体转动的角速度为零 （4）作用在定轴转动刚体上合力矩越大，刚体转动的角加速度越大 （5）作用在定轴转动刚体上的合力矩为零，刚体转动的角加速度为零
①
（1）和（2）是正确的
②
（2）和（3）是正确的
③
（3）和（4）是正确的
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（4）和（5）是正确的
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