等效法也叫等效替代法,是物理学研究的重要方法之一.它是把陌生、复杂的物理对象、物理过程在保证某种效果、特性或关系相同的前提下,转化为简单、熟悉的物理对象、物理过程来研究其本质和规律的一种思想方法.在高中物理解题中,常见的等效法替代有很多种情况:诸如对象的等效、模型的等效、过程的等效、运动的等效、作用的 Equivalence, also known as equivalent substitution, is one of the important methods in the study of physics, which transforms simple, familiar and familiar physical objects and physical processes under the premise of ensuring certain effects, characteristics or relationships Physical objects, physical processes to study the nature and law of a way of thinking in high school physics problem solving, there are many common alternatives to equivalence method: such as the equivalent of the object, the equivalent of the model, the equivalent of the process The equivalent of exercise, the role of