在学习关于圆周运动这一类物理知识的时候,最主要学习的就是匀速圆周运动,也就是圆周运动的物体线速度大小为恒定的。可是,很容易将线速度相对性这一问题忽视了。因而,本文简单分析了圆周运动里面的线速度相对性,简要概述了圆周运动与线速度的基本含义,进而通过例题阐述了关于线速度的相对性。 When learning about this type of physical knowledge of circular motion, the most important thing to learn is the constant circular motion, that is, the circular velocity of the object is constant. However, it is easy to overlook the issue of the relative linear speed. Therefore, this paper simply analyzes the relativity of linear velocity in circular motion, briefly summarizes the basic meaning of circular motion and linear velocity, then expounds the relativity of linear velocity by the example.