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高中物理第一册《超重和失重》一书，教材是利用站在升降机内测力计上的人通过升降机的上升、下降，观察测力计示数的例子讲解的。内容叙述简单，学生看不到超重现象和失重现象，很难理解。为了使超重现象和失重现象直观地展现在课堂上，我在教学中自制了一套简易的超重演示器
The book “Overweight and Weightlessness” in High School Physics Book 1 is used as an example of how a person standing on a dynamometer in a lift can watch the dynamometer indication by using the rise and fall of the lifter. Content description is simple, students do not see the phenomenon of overweight and weightlessness, it is difficult to understand. In order to visualize the phenomenon of overweight and weight loss in the classroom, I made a simple set of overweight demonstrator in my teaching.