微元法是一种在物理学中广泛应用的数学方法,因此,使学生学会微元法并能灵活运用是非常必要的。本文通过几个实例详细阐述了微元法在中学物理中特别是力学中的应用。通过微元法,可以将曲面问题转化为平面问题,将曲线问题转化为直线问题,将变量问题转化为常量问题,使非理想模型转化为理想模型,从而使问题得到解决。 Micro-element method is a mathematical method widely used in physics, so it is necessary to enable students to learn the micro-element method and be flexible. This article elaborates the application of the micro-element method in middle school physics especially mechanics through several examples. Through the method of the micro element, the surface problem can be transformed into a plane problem, the curve problem into a straight line problem, the variable problem into a constant problem, the non-ideal model into an ideal model, so that the problem can be solved.