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如图甲为一列简谐横波在某一时刻的波形图,图乙为介质中x=2m处的质点P以此时刻为计时起点的振动图象.下列说法正确的是 ( )
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高三下学期物理《2018年广东省惠州市高考物理模拟试卷(4月份)》真题及答案
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图甲为一列简谐横波在某一时刻的波形图图乙为质点P.以此时刻为计时起点的振动图象从该时刻起
经过0.35 s时,质点Q.距平衡位置的距离等于质点P.距平衡位置的距离
经过0.25 s时,质点Q.的加速度大于质点P.的加速度
经过0.15 s,波沿x轴的正方向传播了3 m
经过0.1 s时,质点Q.的运动方向沿y轴正方向
一列简谐横波在某一时刻的波形图如图甲所示图中P.Q.两质点的横坐标分别为x=1.5m和x=4.5m.
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①④
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图甲为一列简谐横波在某一时刻的波形图图乙为介质中x=2m处的质点P以此时刻为计时起点的振动图象.下列
一列简谐横波沿x轴传播如图所示实线为t=0时刻的波形图虚线表示经过Δt=0.2s后的波形图.1求波速
如图所示一列简谐横波沿x轴传播实线为t1=0时刻的波形图虚线为t2=0.25s时刻的波形图已知这列波
2m/s,向左
2m/s,向右
6m/s,向左
6m/s,向右
图甲是一列沿x轴正方向传播的简谐横波在t=0时刻的波形图此时离原点6m的介质质点刚要开始振动图乙是该
波长为4m
周期为3s
传播速度为2m/s
波源起振方向向上
图甲为一列简谐横波在t=0时刻的波形图图乙为质点P.以此时刻为计时起点的振动图象1简谐横波的传播方向
一列沿x轴传播的简谐横波某时刻的波形图象如图中的实线所示再经t=0.2s的波形图如图11中的虚线所示
一简谐横波在某一时刻的波形图如图甲所示图乙为介质中x=2m处的质点P.以此时刻为计时起点的振动图象则
图1为一列向左传播的简谐横波在某一时刻的波形图判断波形图上P点的振动方向.
如图甲所示是一列沿x轴正方向传播的简谐横波在t=0时刻的波形图P.是离原点x1=2m的一个介质质点Q
这列波的波长为λ = 4 m
这列波的周期为T. = 3 s
这列波的传播速度为v = 2 m/s
这列波的波源起振方向为向下 E.乙图可能是图甲中质点P.的振动图像
图甲为一列简谐横波在某一时刻的波形图.ab两质点的横坐标分别为x=2m和x=6m图乙为质点b从该时刻
该波沿+x方向传播,波速为1m/s
质点a经4s振动的路程为4m
此时刻质点a的速度沿+y方向
质点a在t =2 s时速度为零
图甲为一列沿x轴正方向传播的简谐横波在t=0时刻的波形图P.是离原点x1=2m的质点Q.是离原点x2
这列波的波长λ=6 m
这列波的波速v=3 m/s
这列波的波源起振方向为向上
图乙可能是图甲中质点Q.的振动图象
在图中实线是0时刻一列简谐横波的波形图虚线是0.2s时该波的波形图求这列波的周期和波速
一列简谐横波如图所示波长λ=8m实线表示t1=0时刻的波形图虚线表示t2=0.005s时刻第一次出现
一列沿x轴传播的简谐横波某时刻的波形图象如图中的实线所示再经t=0.2s的波形图如图中的虚线所示.则
细绳的一端在外力作用下从t=0时刻开始做简谐运动激发出一列简谐横波在细绳上选取15个点图1为t=0时
如图所示是一列简谐横波在t1=0时刻的波形图已知这列波沿x轴正方向传播波速为20m/s试画出t2=0
如图甲为一列简谐横波在某一时刻的波形图图乙为介质中x=2m处的质点P.以此时刻为计时起点的振动图象.
这列波的传播速度是20m/s
经过0.15s,质点P.沿x轴的正方向传播了3m
经过0.1s时,质点Q.的运动方向沿y轴正方向
经过0.35s时,质点Q.距平衡位置的距离小于质点P.距平衡位置的距离
图甲为一列简谐横波在某一时刻的波形图ab两质点的横坐标分别为和图乙为质点b从该时刻开始计时的振动图象
该波沿+x方向传播,波速为1m/s
质点a经过4s振动的路程为4m
此时刻质点a的速度沿+y方向
质点a在t=2s时速度为零
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