机械振动在介质中的传播形成机械波。关于机械波的教学,一直是高中物理教学中的一个难点,而横波的教学又是重中之重,如何理解横波的传播过程呢?如何使学生理解横波在传播过程中,是由于介质中存在相互作用,前面的质点振动会带动后面的质点相继跟着振动起来,但后面的质点振动却要比前面质点振动要晚一点呢?这一直是每位教师所探讨的问题。为了突破这个难点,笔者利用PowerPoint2003制作了一个横波演示课件,能够使学生很好地理解横波的传播过程。现介绍其制作步骤如 Mechanical vibrations propagate in the medium to form mechanical waves. The teaching of mechanical waves has always been a difficult point in high school physics teaching, and the teaching of S-wave is the most important thing. How to understand the process of S-wave propagation? How to make students understand S-wave in the process of propagation is due to the mutual existence of media The role of vibration in front of the particles will cause the particles behind to vibrate one after the other, but the vibration of the latter particles will be later than the previous point of vibration. This has always been a question that every teacher has discussed. In order to break through this difficulty, the author uses PowerPoint 2003 to create a transverse wave demonstration courseware that will enable students to understand the process of transverse wave propagation. Now introduce its production steps such as