能量转化与守恒定律是高中物理的基本原理,在力学、热学、电磁学、光学与原子物理学中,均存在需用能量相关知识点解答的问题,这些问题涉及的知识面较广,需要学生具备综合、深入分析问题的思维能力,解题要求较高。一、能量专题复习存在的问题以目前的相关研究为依据,结合笔者的教学实践,学生在能量知识掌握与运用能量观点解题方面存在一些问题。首先,学生对机械能概念的理解比较困难,不能准确把握能量与力的区别与联系,比如有的学生觉得下落的石头有力,认为静止的物体没有能 The law of energy conversion and conservation is the basic principle of physics in high school. There are problems in mechanics, thermal science, electromagnetics, optics and atomic physics that need to use energy-related knowledge points. These questions involve a wide range of knowledge and require students Have a comprehensive, in-depth analysis of the problem thinking ability, problem-solving requirements higher. First, the issue of reviewing the energy subject to the current relevant research as the basis, combined with the author’s teaching practice, students have some problems in energy knowledge to grasp and use of energy point of view to solve problems. First, students understand the concept of mechanical energy is more difficult, can not accurately grasp the difference between energy and force and contact, such as some students feel the power of falling rocks, that static objects can not