加速度是描述物体速度变化快慢的物理量,它是速度对时间的变化率.这是初中学生进入高中后首次遇到的用变化率来定义的物理量,也是高中物理中最常用的物理量,在力学中占有很重要的位置.因此,可以说学好加速度是学好高中力学的关键. Acceleration is a physical quantity describing the speed of an object. It is the rate of change of speed versus time. This is the physical quantity defined by the rate of change first encountered by junior high school students after entering high school, and is also the most commonly used physical quantity in high school physics. Possessing an important position. Therefore, it can be said that learning acceleration is the key to learning the mechanics of high school.