CAJ | 학술논문

研究一些物理问题时,我们会遇到质点或质点系相对于参考点或绕轴转动的情况,此时用速度、动量都不能解决,因此物理学中引入了新的物理量—角动量.角动量能准确地描述物体的转动状况,在量子领域中也能反映表征状态,并且在现代技术中有着广泛的应用.本文从角动量的定义出发,对质点对参考点、质点绕定轴、质点系绕定轴等不同情况下的角动量定理及守恒定律进行了研究,并对动量守恒和角动量守恒的区别与联系以及角动量的知识应用等进行了探讨.
연구일사물리문제시,아문회우도질점혹질점계상대우삼고점혹요축전동적정황,차시용속도、동량도불능해결,인차물이학중인입료신적물리량—각동량.각동량능준학지묘술물체적전동상황,재양자영역중야능반영표정상태,병차재현대기술중유착엄범적응용.본문종각동량적정의출발,대질점대삼고점、질점요정축、질점계요정축등불동정황하적각동량정리급수항정률진행료연구,병대동량수항화각동량수항적구별여련계이급각동량적지식응용등진행료탐토.
In physics, mass points or mass point systems may revolve relative to the reference point or around the axis. In this case, neither velocity nor momentum can solve it, but angular momentum, a new physical concept of physics, is introduced, which precisely describes the revolution of an object, reflects its representational state in the quantum realm, and is therefore widely used in modern technologies. Based on the definition of angular momentum, this article studies the angular momentum theorems and the conservation laws governing in different circumstances such as the mass point relative to the reference point, the mass point around the fixed axis, the mass point system around the fixed axis, etc, and further probes the differences and commonality between momentum conservation and angular momentum conservation, and the application of angular momentum.