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物理学的产生和发展是遵循着人们认识自然界的普遍规律。在人类认识自然界的过程中,物理学中每一个规律的发现,大都是从感性认识开始,再上升到理性认识,建立理论,然后再回到实践中加以检验而逐步确立的。但是在物理学的教学中由于时间的限制,不可能也没有必要对每一个物理量或物理定律都介绍人们的认识历史过程。而只能抓住典型章节或典型问题作示范性讲述,起到以点带面的作用。比如力学中动量及动量守恒定律,电学中电磁感应,光学中光的本性,都有辩证唯物论的知
The emergence and development of physics follow the universal law of understanding of nature. In the process of human understanding of nature, the discovery of every law in physics begins with perceptual knowledge, then rises to rational cognition, establishes theory, and then returns to practice to test it gradually. However, due to the limitation of time in the teaching of physics, it is impossible and unnecessary to introduce people’s understanding of the historical process to every physical quantity or physical law. But can only grasp the typical chapters or typical problems for demonstration about play a role with a point. For example, the law of conservation of momentum and momentum in mechanics, the electromagnetic induction in electricity, and the nature of light in optics, all have the knowledge of dialectical materialism