物理是研究物质结构及其运动规律的一门学科,知识结构以物理概念为逻辑起点,以物理规律为基本结构形式。在对物理对象的抽象中,建立了诸如质点、电荷、电动势、光线等物理概念,同时建立了基于物理概念相互关系的物理规律,如运动学规律、动量定理及动量守恒定律、动能定理及机械能守恒定律、闭合电路欧姆定律、光的反射和折射规律等。准确理解物理概念和物理规律所蕴含的意义系统,应用物理规律必备的条件,建立并积累物理规律 Physics is a discipline to study the structure of matter and its movement. The structure of knowledge takes the concept of physics as the logical starting point and the law of physics as its basic structure. In the abstraction of physical objects, physical concepts such as particle, charge, electromotive force and light are established. At the same time, physical laws based on physical concepts are established, such as kinematics law, momentum theorem and law of conservation of momentum, kinetic energy theorem and mechanical energy Conservation law, closed circuit Ohm’s law, light reflection and refraction law. Accurately understand the meaning of the system of physical concepts and laws of physics, the application of the necessary laws of the laws of physics, the establishment and accumulation of physical laws