人教版高中物理新教材中有“两个简谐运动的合成”(必修第一册第九章图 9- 10 )、“乐音和音阶”(同上 p.16 5- p.16 7阅读材料 )、“声波的干涉”(必修加选修第十六章 )等几项内容 .如果用传统方法演示则器材繁多操作麻烦 ,且效果并不理想 .笔者采用电子琴与示波器结合 ,简便 There are “two synthesis of simple harmonic movements” in the new teaching materials for senior high school physics textbooks (Compulsory Volume I, Chapter 9 Figure 9-10), “music tone and scale” (ibid. p.16 5-p.16 7 reading material ), “Interference of sound waves” (required to add the sixth chapter) and other items. If you use the traditional method to demonstrate a lot of equipment trouble, and the effect is not ideal. I use the keyboard and oscilloscope combination, simple