
振动
Authored by Science (Ind)
Physics
10th - 12th Grade
Used 8+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪项有关简谐运动的说法是错误的?
在平衡位置,物体的加速度最大
在平衡位置,物体的速度最大
在振幅,物体的加速度最大
在振幅,物体的速度最小
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
一物体做简谐运动,用了 3.5 s 做五个全振动,其周期 T 是多少?
0.7 s
3.5 s
0.29 s
1.43 s
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
两个单摆在做简谐运动。 P 的摆长比 Q 的摆长大,且摆球 P 的质量比摆球 Q 大,试比较他们的摆动周期。
P 的周期较大
Q 的周期较大
P 和 Q 的周期一样
资料不足,无法判断
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪一项举措可增加单摆的摆动频率?
将单摆移至重力加速度较大的地方
将单摆的摆长增大
将单摆的质量增大
增大单摆摆动的角度
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
图示某简谐振动物体的(加速度-位移) 图像。已知物体的角速率是 2 rad s-1。由图可知物体的最大加速度是
20 m s-2
30 m s-2
40 m s-2
60 m s-2
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
某物体的振动方程式是 x = 10 sin (6πt),x 的单位为 cm,t 的单位为 s。下列正确的是
频率为 1/3 Hz
振幅为 10 m
角速率为 6π rad s-1
周期为 3 s
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
一弹簧在做振动,振动范围从图中的A至E,弹簧振子在哪个位置拥有最大的动能?
A
B
C
D
E
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