题目内容

测得弹簧振子振动的周期为T，若将振子的质量增大为原来的4倍，则振子振动的周期变为

A. T
B. T/2
C. 2T
D. 4T

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下列哪种情况下简谐振子振动的角频率将保持不变？

A. 改变振子的初始位置
B. 改变振子的初始速度
C. 同时改变振子的初始速度和初始位置
D. 以上情况下振子的角频率都不变

用旋转矢量法描述简谐振动时，旋转矢量与x轴直接的夹角为振子振动的

A. 振幅
B. 相位
C. 初相
D. 角频率

在同一个周期内，简谐振子的相位与振动状态一一对应。

A. 对
B. 错

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