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假设法也叫虚拟法,是解决物理问题的一种常用的思维方法。本文简要介绍它在物理解题中常见的几种应用。 一、假设物理量 某些物理问题中,初看似乎缺少已知条件,无法直接建立已知和未知的联系,可通过增设一些相关的物理量或条件,以便顺利地建立题述各物理量间的关系,然后再通过数学代换等方法,消去多设的物理量,使问题求解得以实现。
The hypothetical method, also called virtual method, is a commonly used way of thinking to solve physical problems. This article briefly introduces several of the common applications in object understanding. First, hypothetical physical quantity In some physical problems, at first glance there seems to be a lack of known conditions, and it is impossible to directly establish a known and unknown relationship. By adding some related physical quantities or conditions, in order to successfully establish the relationship between the subject physical quantities, Then through mathematical substitution and other methods, eliminate the multiple physical quantities, so that the problem can be solved.