波动问题在教材中内容相对较少,但所涉及的问题复杂多变,往往有一定的规律性和技巧性,本文就波动问题中遇到的一些难点问题进行简单的归纳分析.一、波动和质点振动问题在波动问题中波的传播方向和质点的振动之间的关系始终是学生很难突破的一个难点,学生在理解质点运动方向的问 The problem of volatility in teaching materials is relatively small, but the problems involved are complex and changeable, often with certain regularity and skill. This paper briefly analyzes some of the difficulties encountered in volatility problems. First, volatility and The relationship between the vibration of the particle and the vibration of the particle in the wave problem is always a difficult point for students to break through. The students are in the understanding of the direction of particle motion.