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对于曲和直的关系.从哲学高度上辩证认识。曲和直是相对的,二者有着紧密的内在联系。直中有曲,曲中有直.不可能绝然割裂。正确认识曲和直的关系.对于中学物理教学有一定的好处。1.曲和直是相对的。如:百米赛跑的运动员.我们说他在平直的跑道上做直线运动。但实际上跑道并不平直.因运动员的跑动是上下晃动.左右晃动。实际上是一种复杂运动。但在一般情况下.我们将运动员的跑动看作直线运动.这显然是一种科学的近似。2.曲可以转化为直。如在做水平匀速行驶的列车的天花板上有一水滴落下。对于水滴的运动.在地
For the relationship between music and straight. From the philosophical level of dialectical understanding. Qu and straight are relative, and both have a close internal connection. There is a song in the straight, there is a straight song. It is impossible to cut it out. Correct understanding of the relationship between music and straight. There are certain benefits for high school physics teaching. 1. The song and the straight are relative. Such as: 100m runners. We said that he made a straight line on a straight runway. But in fact the runway is not straight. The athlete’s movement is shaking up and down. It is actually a complex sport. But in general, we see athletes’ movements as linear movements. This is obviously a scientific approximation. 2. The music can be converted to straight. For example, there is a drop of water falling on the ceiling of a train running at a horizontal uniform speed. For the movement of water droplets.