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在学习物理时,极限分析法是比较难运用的一种方法,尤其是解压强问题,同学们往往难以把握极限分析法解答问题的适用范围。在解压强类的问题时,首先需要抓住的是题干中的变量以及变量的约束范围,然后根据压强定律去规范出变量的变化范围,最后再利用极限分析法去分析,这样就能快速得出答案了。下面将结合几道例题来与同学们一起探讨如何运用极限分析法解决“截去相同高度”的压强问题。
When studying physics, the limit analysis method is a kind of method that is difficult to use, especially the decompression problem, students often can not grasp the scope of application of the limit analysis method to solve the problem. In the decompression of the type of problem, we must first seize the title of the variables and variable constraints, and then according to the law of pressure to regulate the variable range, and finally use the limit analysis to analyze, so you can quickly Got the answer. The following will be combined with a few examples to discuss with students how to use limit analysis method to solve the “cut the same height” pressure problem.