摘要
在比较了若干种教材对机械能守恒的条件的不同阐述后,从强调概念清晰的原则出发,提出在课堂教学中如何讲授该问题的意见。
After comparing the different explanations of the conditions of mechanical energy conservation in some text-books,according to the principle of making concept clear,this paper proposes suggestion of how to teach this problem in class.
出处
《西安邮电学院学报》
2003年第3期70-72,共3页
Journal of Xi'an Institute of Posts and Telecommunications
关键词
机械能守恒
课堂教学
外力
非保守内力
守恒条件
mechanical energy
conditions of conservation
external force
nonconservative internal force
