高中物狸，从受力分析开始

• 作 者: 王正清
• 机 构: 湖南省岳阳中学 414004
• 出 处: 数理天地(高中版)
• 发表日期: 2006年10期
• 关键词: 受力分析 高中物理 整体法 动摩擦因数 牛顿第三定律 连接体 水平地面 细绳 数理天地 拉力作用

受力分析是同学们学习高中物理所遇到的第一个学习重点．打好这个基础,对学好力学和电磁学尤为重要．进行受力分析,有三个要点：1．明确研究对象进行受力分析前,要先弄清受力的对象．我们常说的“隔离法”、“整体法”,指的是受力的对象是单个物体,还是由多个物体组成的整体．对于连接体,在进行受力分析时,往往要变换几次研究对象之后才能解决问题．

3. Stress analysis is the first learning focus that students face when they study high school physics. To lay a solid foundation is especially important for studying mechanics and electromagnetism. To carry out stress analysis, there are three main points: 1. Before explicitly analyzing the subject for force analysis, it is necessary to clarify the subject of the force. The “isolation method” and “integral method” that we often say refer to whether the object of force is a single object or an entire body made up of multiple objects. For the connector, it is often necessary to change the object of study several times before carrying out stress analysis to solve the problem.