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解答物理习题历来为中学物理教师和学生所重视。要顺利地解答习题,就必须重视分析习题。只有分析深刻透彻,才能解决正确无误,达到加深理解知识和培养能力的目的。不重视分析,只追求解题的答案和习题的数量,必然陷入“题海”。那么,怎样分析物理习题呢?根据物理习题的基本结构和解题的一般步骤,笔者认为要着重分析下列几个方面。一、分析研究对象,确定解题目标。力学习题中,哪个物体或哪几个物体组成的系统是研究对象;气态方程问题中,哪部分气体是研究对象;电学习题中,哪部分电路或哪一闭合电路是研究对
Resolving physics exercises has always attached importance to middle school physics teachers and students. To successfully solve problems, you must pay attention to analytical exercises. Only when the analysis is profound and thorough can we solve the problem correctly and achieve the purpose of deepening the understanding of knowledge and cultivating capabilities. Do not pay attention to analysis, only to pursue the number of answers to the problem and the number of exercises, will inevitably fall into the “title sea”. So, how to analyze physics exercises? According to the basic structure of physics exercises and the general steps for solving problems, the author believes that the following aspects should be analyzed. First, analyze the research object and determine the problem-solving goal. In the force study problem, which object or several objects make up the system is the object of study; in the problem of the gaseous state equation, which part of the gas is the object of study; in the electro-learning question, which part of the circuit or the closed circuit is the study pair