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1 实验目的超重、失重现象较为常见,也很重要。虽然学生对超重、失重现象有所了解,但仍缺乏感性认识。为了让学生从电梯、过山车现象中的感觉上升到直接“看到”超重、失重现象,抓住这个稍纵即逝的现象,我们设计了弹性双轨,以此更加直观地观察超重、失重现象。2 实验器材铜焊条(或铁丝)、底座(铝合金或木制)、铁架
1 Overweight and weight loss are common and important in the experiment. Although students understand the phenomenon of overweight and weight loss, they still lack perceptual knowledge. In order to allow students to rise from the feeling of elevators and rollercoasters to the phenomenon of direct “seeing” overweight and weightlessness, and to capture this fleeting phenomenon, we designed an elastic double track to observe overweight and weight loss more intuitively. phenomenon. 2 Experimental equipment Brazing rod (or wire), base (aluminum or wooden), iron frame