单选题-单题 适中0.65 引用1 组卷194
图为一列简谐横波在介质中传播的波形图.在传播过程中,某一质点在10s内运动的路程是16m,则此波的波速是( )
![](https://img.xkw.com/dksih/QBM/2015/12/8/1575791128682496/1575791129051136/STEM/d35e3d2a-7cd6-43d3-aa69-ff09bf51b6c6.png?resizew=244)
![](https://img.xkw.com/dksih/QBM/2015/12/8/1575791128682496/1575791129051136/STEM/d35e3d2a-7cd6-43d3-aa69-ff09bf51b6c6.png?resizew=244)
A.1.6m/s | B.2.0m/s | C.40m/s | D.20m/s |
15-16高三上·广东深圳·阶段练习
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一列沿x轴方向传播的简谐横波,已知
时的波形如图甲所示,图乙是
处的质点的振动图象,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/1/9/2897784775827456/2899439148359680/STEM/8be13394-5350-4a3c-a33d-936194ce5860.png?resizew=399)
![](https://img.xkw.com/dksih/QBM/2022/1/9/2897784775827456/2899439148359680/STEM/8be13394-5350-4a3c-a33d-936194ce5860.png?resizew=399)
A.简谐横波的波速为10m/s |
B.简谐横波沿x轴正方向传播 |
C.在 |
D.经过0.4s, |
一列沿x轴传播的简谐波,波速为4m/s,某时刻的波形图象如图所示。此时x=8m处的质点具有正向最大速度,则再过4.5s( )
![](https://img.xkw.com/dksih/QBM/2013/6/25/1575442363981824/1575442390990848/STEM/7f29196a4cd84a83901e9956505dc423.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2013/6/25/1575442363981824/1575442390990848/STEM/a160a8192ae248ef9050812167db3510.png?resizew=172)
![](https://img.xkw.com/dksih/QBM/2013/6/25/1575442363981824/1575442390990848/STEM/7f29196a4cd84a83901e9956505dc423.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2013/6/25/1575442363981824/1575442390990848/STEM/a160a8192ae248ef9050812167db3510.png?resizew=172)
A.x=4m处质点具有正向最大加速度 |
B.x=2m处质点具有负向最大速度 |
C.x=0处质点一定有负向最大加速度 |
D.x=6m处质点通过的路程为20cm |
如图所示是一列沿x轴传播的简谐横波在t=0时刻的波形图,图中质点P正沿y轴正方向运动,此波的传播速度为v=4m/s,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/6/8/2738694510469120/2739358927323136/STEM/6ad552df-4201-4987-890d-26e74edfe4ec.png?resizew=185)
![](https://img.xkw.com/dksih/QBM/2021/6/8/2738694510469120/2739358927323136/STEM/6ad552df-4201-4987-890d-26e74edfe4ec.png?resizew=185)
A.此波沿x轴正方向传播 |
B.质点P的振动周期为T=1.0s |
C.x=1.0m处质点做简谐运动的表达式为y=5cos4πt(cm) |
D.x=1.0m处质点在0~2.5s内通过的路程为50cm |
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