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超重和失重是中学生不易理解的物理现象,和学生一起制作一架简易演示仪,对学生来说是非常有益的.下面就制作过程简要说明如下. 一、原理及图示 (图示见图1) 超重时拉力:F=mg+ma 失重时拉力:F=mg-ma 二、图2所示说明及制作过程
Overweight and weightlessness are physical phenomena that are not easily understood by middle school students. It is very beneficial for students to make a simple demonstration instrument with students. The following is a brief explanation of the production process. I. Principles and illustrations (illustration is shown in Figure 1) ) Pulling force when overweight: F=mg+ma Pulling force when losing weight: F=mg-ma II. Description and manufacturing process shown in Fig. 2