物理习题通常是根据某一个或几个理想化的物理模型,结合某些物理关系,给出各种已知条件而设置的.因此,全面还原模型,揭示其本身特定、固有的规律是解题的依据;而善于区别各种不同的模型,去“伪”存真,准确地选择适合习题的“这一个”模型则是解题的 Physical exercises are usually based on one or more idealized physical models, combined with certain physical relationships, and given various known conditions. Therefore, a comprehensive reduction of the model reveals that its own specific, inherent laws are problem solving. The basis for this; and good at distinguishing different models, to “pseudo” to save truth, and accurately select the “this one” model suitable for exercises is to solve the problem.