要学好物理,需要不断积累许多方面的知识,培养许多方面的能力.比如,数学知识,观察能力,想像力,抓住问题本质的能力等等方面.但最主要的,是要建立一种物理思想.物理是研究物体运动规律的一门科学,运动就有距离的变化,距离的变化靠什么来体现呢?很自然地,长度这个概念就产生了.所 To learn physics, you need to continue to accumulate knowledge in many areas and cultivate abilities in many areas, such as mathematics knowledge, observation ability, imagination, ability to grasp the nature of problems, etc. But the most important thing is to establish a physical idea. Physics is a science that studies the laws of motion of objects. Movement has a change in distance. What does the change in distance show? It is natural that the concept of length has been produced.