大学物理 ›› 2022, Vol. 41 ›› Issue (8): 15-.doi: 10.16854/j.cnki.1000-0712.210535

• 教学讨论 • 上一篇    下一篇

对经典力学中的轨道角动量和自转角动量的探讨

林正喆,陈熙   

  1. 西安电子科技大学 物理与光电工程学院,陕西  西安710071
  • 收稿日期:2021-10-29 修回日期:2021-11-26 出版日期:2022-09-10 发布日期:2022-09-13
  • 作者简介:林正喆(1984—),男,西安电子科技大学物理与光电工程学院副教授,博士,主要从事大学物理理论教学和凝聚态物理研究工作.
  • 基金资助:
    西安电子科技大学物理与光电工程学院教改项目“物理教学中的新模型及理论方法探索”资助

Discussion on orbit angular momentum and rotation momentum in classical mechanics

LIN Zheng-zhe, CHEN Xi   

  1. School of Physics and Optoelectronic Engineering, Xidian University, Xi’An Shanxi 710071, China
  • Received:2021-10-29 Revised:2021-11-26 Online:2022-09-10 Published:2022-09-13

摘要: 角动量是力学中的重要概念.本文建立了经典力学中质点系的轨道角动量和自转角动量的概念,使经典力学的理论体系更加完备,并通过几个例子阐述其应用意义.在经典力学中引入轨道角动量和自转角动量的概念,能够使学生加深对角动量的理解.

关键词: 经典力学, 轨道角动量, 自转角动量

Abstract: Angular momentum is an important concept in mechanics. In this paper, the concepts of orbit angular momentum and rotation momentum of a system of mass points are established in classical mechanics to make the theory more complete. The application significance is illustrated by several examples. Introducing orbit angular momentum and rotation momentum into classical mechanics can help students deepen their understanding of angular momentum, establish a relationship with orbit and spin angular momentum in quantum mechanics, and deeply understand the similarities and differences between spin angular momentum in classical and quantum mechanics.

Key words: classical mechanics, orbit angular momentum, rotation momentum