大学物理 ›› 2005, Vol. 24 ›› Issue (12): 38-38.

• 著者文摘 • 上一篇    下一篇

一种可自动改变力矩方向的课堂角动量定理演示实验

梁法库 [1] 闫公敬 [1] 张敏贤 [2]   

  1. 齐齐哈尔大学,物理系,黑龙江,齐齐哈尔,161006[1] 齐齐哈尔市第十八中学,黑龙江,齐齐哈尔,161000[2]
  • 出版日期:2005-12-25 发布日期:2005-12-20

A demonstrative devic for the theorem of angular momentum

  • Online:2005-12-25 Published:2005-12-20

摘要: 给出了高速自转陀螺在连续周期性外力矩作用及力矩突变下的运动规律演示,实现了力矩可自动改变方向的角动量运动规律演示实验,还给出了在理论上角动量n次变化率不为零的一种实例演示.

关键词: 陀螺, 周期, 力矩, 突变

Abstract: A demonstrative device is constructed showing the relation between the change of angular momentum and the torque applied. A top is supported horizontally and the counterweight is connected by a spring, the direction of angular momentum of the top varies horizontally when the counterweight vibrates vertically.

Key words: top, period, torque, sudden change

中图分类号: 

  • O313.3