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微元法是利用微积分的思想把复杂的研究对象或物理过程“化整为零”再“集零为整”使问题得以解决的一种方法,在高中物理解题中对变化复杂的物理对象运用此法可以化难为易且行之有效。本文结合笔者在高中物理竞赛和日常的物理学习中积累的典型例题,针对不同问题合理选取不同的微元,分类总结微元法在物理解题中的具体应用,深入刻画微元法的本质思想。
Microelement method is the use of the idea of calculus to complex research objects or physical processes “into zero ” and then “set zero for the whole ” to solve the problem of a method in high school physics problem solving Change the complex physical object using this method can be difficult and effective. Based on the typical examples accumulated by the author in high school physics competitions and daily physical learning, this paper selects different kinds of micro-elements according to different problems reasonably, summarizes the specific application of micro-element method in physical problem solving, and deeply describes the essence of micro-element method .