临界状态是高中物理问题中的典型模型,对该状态的准确认识能够挖掘出潜在的物理元素,是正确求解题目的保证.物理题设中的临界问题通常是研究对象所处状态的过渡,因此在物理学上具有及其微妙的特征,准确把握临界状态是深化认识的关键,只有掌握了研究对象的临界状态,才能通过物理原理推演出即将发生的物理现象,并由此列出数学物理方程进行定量求解,可见物理学科中的临界状态分析也是将物理问题转化为数学问题的前提,通过临界态所具备的特征寻找具体的物理 Critical state is a typical model of high school physics problems, accurate understanding of the state can tap potential physical elements, is the correct solution to the problem of the problem.Physical problems in the critical problem is usually the study of the state transition, so In physics, with its subtle features and accurate grasp of the critical state is the key to deepening understanding. Only by grasping the critical state of the research object can we deduce the forthcoming physical phenomena through the principle of physics and thus formulate mathematical physics equations Quantitative solution shows that the critical state analysis in physics is also a prerequisite for transforming a physical problem into a mathematical problem. Through the characteristics of the critical state, we can find a specific physical