论文部分内容阅读
弹簧的弹力是变力问题,与弹簧相连接的物体所做的运动一般不是匀变速直线运动,有关的一些运动学公式就无法使用。如果问题涉及弹簧弹性势能,题目的综合性就更高,学生往往不知如何下手,这是因为高中阶段不要求学生掌握弹性势能表达式;加上物体的运动一般是简谐运动,学生容易将弹力计算公式与简谐运动的回复力计算公式混淆,造成
The spring force of a spring is a variable force problem. The motion of an object connected to a spring is generally not a linear motion with uniform speed, and some kinematic formulas can not be used. If the problem involves the spring potential energy, the topic is more comprehensive, students often do not know how to start, this is because high school does not require students to master the elastic potential energy expression; coupled with object movement is generally harmonic movement, students tend to stretch Computation formula and the simple harmonic motion of the formula for calculating the force of confusion, resulting