刚体转动动力学问题中的一题多解  

Multi-Solution to One Problem from the Dynamics of the Rigid Body Rotation

作　　者：樊丽娟[1] 王金德[2] 祝娅[1] 

机构地区：[1]铜仁学院物理与电子科学系,贵州铜仁554300 [2]沧州师范学院物理与电子信息系,河北沧州061001

出　　处：《铜仁学院学报》2011年第1期137-140,共4页Journal of Tongren University

摘　　要：在讨论刚体定轴转动一类动力学问题时,往往有许多不同的解法,可分别用牛顿第二定律、刚体定轴转动的转动定理、动能定理(或机械能守恒定律)、动量定理和角动量定理求解。进行一题多解的训练,不仅可以使学生对动力学有关定理的理解融会贯通,而且可以有效地培养他们的解题能力。Discussing the dynamical problem associated with fixed-axis rotation of a rigid body, we can adopt several methods to resolve it, such as Newton＇s second law, rigid body rotation theorem of fixed-axis rotation, kinetic energy theorem （or mechanical energy conservation law） and momentum conservation and angular-momentum theorems. Training of multi-solution to one problem, can not only deepen the understanding for the dynamics of theorems, but also can be effective in promoting students＇ ability to solve problems.

关 键 词：刚体 定轴转动 动力学 一题多解 

分 类 号：G42[文化科学—课程与教学论]