论文部分内容阅读
统编高中物理课本《机械振动和机械波》一章的特点是:物理现象和物理概念多(特别是非量概念);有些概念(如相、波长)同学不易接受;引入一些同学生疏的研究方法。因此,如果教材处理欠妥,将造成知识散,系统乱,理解浅的弊病。有鉴于此,本文介绍笔者讲授本章的一些做法。一、简谐振动过程的分析首先,用节拍器配合演示竖直弹簧振子(图8—1,文中所述图号均对照课本)和单摆(图6—20)的实
The characteristics of the chapter entitled “Mechanical Vibration and Mechanical Waves” in the textbook of high school physics textbooks are: Physical phenomena and physical concepts are many (especially non-quantitative concepts); some concepts (such as phase and wavelength) are not easy for students to accept; introduce some research methods with students. Therefore, if the teaching materials are not handled properly, it will result in scattered knowledge, system disorder, and poor understanding. In view of this, this article describes some of the practices taught by the author. First, the analysis of the harmonic vibration process First, using the metronome to demonstrate the vertical spring oscillator (Figure 8.1, the text described in the text are compared with textbooks) and the pendulum (Figure 6-20)