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笔者查阅高中阶段的各类物理考试和竞赛试题发现,目前高中物理试题考察的角度已经不是简单的物理定律和理论知识,而是学生的实际应用能力、逻辑思维能力和思变意识.极限法和极限思维本来是一种数学思维,在物理学上近些年开始广泛地使用.极限法在高中物理中的应用主要针对物理对象的过程和状态的变化,按照物理过程的变化趋势合理外推到极端的情况.这种方法的应用为物理难题的解决找到了突破口和切入点,一定程度上简化了解题过程和提高了解题效率.笔者通过
The author refers to all kinds of high school physics exams and competition exams found that the current high school physics examinations point of view is not a simple physical laws and theoretical knowledge, but students practical ability, logical thinking ability and thinking change. Extreme thinking was originally a kind of mathematical thinking, which has been widely used in physics in recent years. The application of limit law in high school physics mainly aims at the process and state changes of physical objects. According to the trend of physical process, it is reasonably extrapolated to Extreme situation.The application of this method has found a breakthrough point and entry point for the solution of physical problems, to a certain extent, simplifying the problem solving process and improving the efficiency of problem solving.The author adopted