考试大纲解读考点梳理教育部考试中心把3-5中动量内容由选考调整为必考可能基于以下原因:3-5动量部分是物理学中最重要的概念之一。几乎所有的经典力学的教材乃至牛顿的整个经典力学体系,都是以动量作为最基础的物理概念建立起来的。动量守恒定律是与能量守恒定律同等重要的基本物理规律,在宏观、宇观、微观世界都成立。动量的概念起源于力学,但贯穿热学、电磁学、光学、近代物理等领域。对动量的学习, Interpretation of the test center Test centers Combining the examination center of the Ministry of Education Adjusting the contents of the medium momentum from test to test for the following reasons may be based on the following reasons: The momentum part is one of the most important concepts in physics. Almost all of the textbooks of classical mechanics and even of Newton’s entire classical mechanics are based on the momentum as the most basic physical concept. The law of conservation of momentum is a fundamental physical law that is as important as the law of conservation of energy, and is established in macroscopic, cosmic and microscopic worlds. The concept of momentum originated in mechanics, but throughout the thermal, electromagnetics, optics, modern physics and other fields. The momentum of learning,