笔者近日阅读了刊登在《中学物理教学参考》2002年第4期《对单摆“平衡位置”的质疑》和2002年第10期《对单摆“平衡位置”的释疑》两篇文章,从文中可以明确两点:(1)所谓“平衡位置”就是摆球在做简谐振动过程中回复力为零的位置,而不是所受合外力为零的位置;(2)任何振动物体经过“平衡位置”时并不处于“平衡状态”,因为“平衡状态”是指物体在一段 Recently, the author read two articles published in the “High School Physics Teaching Reference” No. 4 of 2002 titled “Questioning the Balance Position of the Pendulum” and No. 10 “Explanation of the Balance Position of the Pendulum” in 2002 The text can be clearly two points: (1) The so-called “balance position” is the ball in the process of making simple harmonic vibration in the zero position of restitution, but not subject to zero external force position; (2) any vibration object after “ Balance position ”is not in“ equilibrium ”, because“ balance ”refers to the object in a period