高中物理课本第一册(必修)在《机械波》、《波的图象》两节中,都有波的图象。它是怎样形成的呢?课本中这样写到:用手拉着绳的一端上下摆动(绳的另一端被固定在远处),就会看到一列凸凹相间的波向绳的另一端传去。这种瞬息即过的波形印在脑海中,然后记录下来,进行有关波的知识的讲解。另外,实验室里还 The first volume of the high school physics textbook (required) has images of waves in the two sections of “Mechanical Wave” and “Image of Waves.” How is it formed? In the textbook, it is written that the end of the string is pulled up and down (the other end of the string is fixed at a distance), and a row of convex and concave waves is transmitted to the other end of the rope. . This kind of instant waveform is printed in the mind, and then recorded to explain the wave of knowledge. In addition, the laboratory also