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理解波的形成特征,掌握波的分析方法,这是解决机械波难点问题的有效途径。下面就波动的三个考查重点作一简要讨论。 一、判断质点的振动方向 在波的传播方向上,各质点的振动特征是先振动的质点带动后振动的质点,后振动的质点总是重复先振动的质点,这也是波动形成的基本特征,理解并利用这一基本特征,可判断出各质点的振动方向。
Understanding the formation characteristics of waves and grasping wave analysis methods is an effective way to solve the problem of mechanical wave problems. Below is a brief discussion of the three focus points of the volatility. First, to determine the vibration direction of the particle in the direction of propagation of the wave, the vibration characteristics of each particle are the particles of the vibration after the vibration of the particle. The particle of the vibration is always the particle of the first vibration. This is also the basic characteristic of the wave formation. Understand and use this basic feature to determine the vibration direction of each particle.