近年国外出版的基础物理教科书,讨论质点在有心力作用下的运动时,普遍引入了等效离心势能的概念;研究生的考题中也涉及到这一概念。应用这种等效方法,很容易了解质点在有心力作用下运动的许多特性,从而很方便地解决这类运动的问题。本文从教学的角度,论述等效离心势能的意义及其应用。设想一质量为m的质点在有心力作用下运动,并设产生这有心力场的物体具有非常巨大的质量,因而可以把它看作是一个固定中心,并取为坐标原点,如图一(a)所示。由于有心 In recent years, basic physics textbooks published in foreign countries have discussed the concept of equivalent centrifugal potential energy in the movement of particles under the influence of their minds. This concept has also been covered in graduate students’ questions. Using this equivalent method, it is easy to understand many characteristics of the particle in the movement of the heart, so that it is easy to solve the problem of this type of movement. This article discusses the significance and application of equivalent centrifugal potential energy from the teaching point of view. Assume that a particle of mass m moves under the influence of a force, and that the object that produces the force field has a very large mass, so it can be regarded as a fixed center and taken as the origin of coordinates, as shown in Figure 1 ( a) shows. Due to heart