机械波问题是历年高考的必考内容,其内容具有较强的综合性,题目设问方式灵活多变。学生在碰到此类问题时往往束手无策,失分严重,究其原因是不会分析机械波的动态过程。提出用学生较为熟知的三角函数,运用振动方程与波动方程来分析机械波的问题,从而达到简易解题的效果。 The mechanical wave problem is the compulsory examination content of the college entrance examination over the years, its content has a strong comprehensiveness, the subject of questioning way is flexible. When students encounter such problems are often helpless, serious loss, the reason is that the dynamic process of mechanical waves will not be analyzed. Put forward the students are more familiar with the trigonometric function, the use of vibration and wave equations to analyze mechanical wave problems, so as to achieve the effect of simple problem solving.