将一列波中两个时刻的波动图像或两个质点的振动图象,一同描绘在同一坐标系中,是振动与波部分常见的题型,也是高考命题的热点,下面将其分析方法做一归纳.一、二合一波动图象的分析方法例1(2007年天津,有改动)如图1所示,实线是沿x轴传播的一列简谐波在t=0时刻的波形图,虚线是这列波在t=0.2 s时刻的波形图,则下列说法正确的是 A wave of two moments in the wave image or two particle vibration images are drawn together in the same coordinate system is a common vibration and wave part of the problem is also a hot topic college entrance examination, the following analysis method to do a Summarized I. Analysis Method of Two-in-One Fluctuating Image Example 1 (Tianjin, 2007) As shown in Figure 1, the solid line is a waveform of a series of simple harmonic waves propagating along the x-axis at t = 0, The dotted line is the waveform of the wave at t = 0.2 s, then the following statement is correct