机械波的内容多,而且知识点杂.为了帮助同学们提高复习质量和效率,下面,我结合例题,来分析大家在复习中会感到困难和迷惑的一些知识点.并请记住:打通“关节”,方可乘风破浪.一、已知波的传播方向,要判断质点的振动方向——用“微小平移”法 The contents of the mechanical wave are numerous and the knowledge is mixed. In order to help the students improve the quality and efficiency of review, I will use the examples to analyze some of the knowledge points that will be difficult and confusing during the review. Please remember to open the joints. ”, can only take the wind and waves. First, the direction of propagation of the known wave, to determine the vibration direction of the particle - with the “little translation” method