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学习机械运动与描述机械运动时,由于有些同学审题不清或概念不清,对相关知识了解不够,在解题时往往会出现错误.易错点一:不能区分机械运动与其他形式的运动机械运动是一个物体相对于另一个物体位置的变化.判断一个物体是否运动,关键是看它与参照物之间有无位置的变化,如果它们之间的位置没有变化,就说该物体没有运动.部分同学把机械运动与心理活动、生命运动、电磁运动等非机械运动的概念搞混淆了,实际是对机械运动的概念理解不透.
When learning mechanical movement and describing mechanical movement, some students often do not know enough about the related knowledge due to the unclear or unclear concept of trial or error, and the mistakes are always made when solving the problem. Error-prone point one: it can not distinguish between mechanical movement and other forms of moving machinery Movement is the change of an object relative to another object. The key to judging whether an object moves or not is to see if there is any change in position between it and the reference object. If there is no change in the position between them, it means that the object is not moving. Some students confused the concept of mechanical movement with the non-mechanical movement such as mental activity, life movement and electromagnetic movement, and actually did not understand the concept of mechanical movement.