高中物理弹性碰撞定义的研究

发布时间：2019-02-11 16:35

【摘要】：目前,我国现行的高中物理教材关于弹性碰撞的定义与部分大学物理教材中关于弹性碰撞的定义存在明显的差异,导致的结果是:对某些碰撞按两种定义做出的判断结论相同,对某些碰撞按两种定义做出的判断结论却不同。通过对这两种不同定义的比较、分析研究,发现大学物理教材中关于弹性碰撞的定义更为准确、合理一些。在此基础上通过研究得出如果将高中物理教材中关于弹性碰撞的定义修改为“在理想情况下(忽略碰撞系统在碰撞过程中由于发光、发声等带来的机械能损耗),物体发生碰撞后,若物体的形变均能够完全恢复,这种碰撞称为弹性碰撞,又称完全弹性碰撞”,则更为妥当一些——这样的定义与大学物理中的定义保持实质相同又能为中学生所接受。在此基础上,结合新的定义对目前高中物理教材关于本节教学内容做出改编。
[Abstract]:At present, there are obvious differences between the current definition of elastic collision in senior high school physics textbooks in China and the definition of elastic collision in some college physics textbooks. The result is that the two definitions of some collisions are the same. The two definitions of some collisions are different. Through the comparison of these two different definitions, it is found that the definition of elastic collision in college physics textbooks is more accurate and reasonable. On the basis of the research, it is concluded that if the definition of elastic collision in physics textbooks of senior high school is revised to "in ideal circumstances (ignoring the mechanical energy loss caused by the luminous, audible and so on during the collision process of the collision system)," If the deformation of an object can be fully recovered after a collision, this collision is called an elastic collision, which is also called a fully elastic collision. It is more appropriate-the definition remains substantially the same as that in college physics and is acceptable to middle school students. On this basis, combined with the new definition of the current senior high school physics textbooks about this section of teaching content to make an adaptation.
【学位授予单位】：西华师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：G633.7

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