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物理学中的每一个定律、定理、公式都有一个特定的研究对象问题。现就中学物理学中有关力学问题的研究对象问题谈些看法。一,中学物理力学问题是研究的相瓦作用力及其产生的效果问题。牛顿第一定律中的一切物体中的物体实质是指研究对象就是一个物体,并且是一个可以视为质点的物体。既然其对象是一个质点,它受到的力就一定是外力了。二,牛顿第二定律是定量地讨论物体运动状态的改变跟它受到的合外力间的关系,它的
Every law, theorem, and formula in physics have a specific research object problem. We will discuss some of the issues related to the study of mechanical problems in middle school physics. First, the problem of physics and mechanics in middle schools is the phase-waving force of the study and its effect. The substance in everything in Newton’s first law is that the object of study is an object, and it is an object that can be regarded as a particle. Since its object is a particle, the force it receives must be external. Second, Newton’s second law is to quantitatively discuss the relationship between the change in the state of motion of an object and the external force it receives, and its