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全日制十年制学校高中物理课本上册第七章第五节,讲弹性碰撞,课文中提到用钢球吊在细绳上来做实验,我们试了多次,感到效果不满意。后来我们改用玻璃弹子来做实验,效果比较明显,现介绍于下: 玻璃球相碰时,恢复系数可达0.94,基本上可认为是弹性碰撞。我们用的玻璃球是小孩玩的玻璃弹子,或是玻璃纤维厂用来拉丝的原料玻璃球。为了在玻璃球上系上细绳,我采用橡皮裔粘贴的办法,甚为方便。剪一块直径约1.som的医用氧
The full-time 10-year school high school physics textbook, Volume 7 Chapter 5, talks about elastic collision. In the text, we mentioned that using a steel ball to hang on a string to perform experiments, we tried many times and felt that the effect was not satisfactory. Later, we changed the use of glass marbles to do experiments, the effect is more obvious, now introduced in the following: When the glass ball collided, the coefficient of restitution up to 0.94, basically considered elastic collision. The glass balls we use are glass marbles for children, or raw glass balls for glass fiber plants. In order to tie the string on the glass ball, I use the method of rubber-bonding, which is very convenient. Cut a medical oxygen with a diameter of about 1.som