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初中物理中运动和力关系的内容,一直是学生学习的难点。因为初中物理涉及运动和力的关系知识也仅仅是力的作用效果、牛顿第一定律、平衡状态,受到初中学生认识水平和课标要求的限制,对力是改变物体运动状态的原因没有做详细阐述。我们可以从以下三个方面,突破这个难点。一、根据物体运动状态判断物体受力情况确定物体的运动状态,处于平衡状态的物体,所
The content of the relationship between the movement and the force in junior middle school physics has always been a difficult point for students to learn. Because junior middle school physics involves the relationship between movement and force knowledge is just the effect of force, Newton’s first law, the balance of state, junior high school students by the level of awareness and the requirements of the standard requirements of the force is to change the state of motion of the object did not do detail Explain. We can break through this difficulty from the following three aspects. First, according to the state of objects to determine the force of the object to determine the state of motion of objects, in balance state objects,