图甲是一列简谐横波在
时刻的波形图,图乙是
处的质点的振动图像。波沿x轴______________ (选填“正”“ 负”)向传播,速度大小为______________
;
时刻,
处质点的位移为______________
。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38a296351b27d1bae8d1222ea8afcd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0357a5542cf2c606fbbb3eb801066a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5be92b571c76194c9de3340567e9dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeb9a94e392f6759b18abed89aacc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25cb8dd460fba5e62efe2370c4af641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/c1ce5669-60a3-4bbe-9f9c-523762b91650.png?resizew=479)
更新时间:2022-08-26 08:45:49
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【知识点】 振动图像与波形图的结合
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【推荐1】一列沿着x轴正方向传播的横波,在t=0时刻的波形如图甲所示.图甲中某质点的振动图象如图乙所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/043a7fad-76b1-4e98-816a-e8253a10b945.png?resizew=454)
质点N的振幅是________ m,振动周期为________ s,图乙表示质点________ (从质点K、L、M、N中选填)的振动图象,该波的波速为________ m/s.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/043a7fad-76b1-4e98-816a-e8253a10b945.png?resizew=454)
质点N的振幅是
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【推荐2】一列沿x轴正方向传播的简谐横波在t=0时刻的波形如图甲所示,图乙是位于x=3m的质点M开始振动后的振动图象,Q是位于x=10m处的质点。则波的传播速度为___________ m/s;在t=12s时,质点Q的位置坐标为_________ 。
![](https://img.xkw.com/dksih/QBM/2020/9/16/2551137288716288/2551823260598272/STEM/127db519-7eb9-4853-928b-165746e25386.png?resizew=222)
![](https://img.xkw.com/dksih/QBM/2020/9/16/2551137288716288/2551823260598272/STEM/127db519-7eb9-4853-928b-165746e25386.png?resizew=222)
![](https://img.xkw.com/dksih/QBM/2020/9/16/2551137288716288/2551823260598272/STEM/c36d7176-bc6a-40b2-809a-93046d9283b0.png?resizew=193)
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