Multifunctional rigid body rotation and angular momentum theorem teaching demonstration instrument

Abstract

The invention relates to a multifunctional rigid body rotation and angular momentum theorem teaching demonstration instrument which comprises a base, a support, an installing seat, a vertical shaft, a cross shaft, a swing rod, a fly wheel, a line guiding device, a fixed pulley and a connecting line. The support is fixed on the base, the installing seat is vertically arranged on the base, the vertical shaft is vertically arranged and rotatably connected with the installing seat so as to freely rotate around the center of the vertical shaft, the cross shaft is horizontally arranged at the upper end of the vertical shaft, one end of the swing rod is in rotary connection with the cross shaft and freely swing around the center of the cross shaft, and the fly wheel sleeves the swing rod to freely rotate around the center of the swing rod. The line guiding device is arranged at the upper portion of the support, the fixed pulley is arranged beside the line guiding device at the upper portion of the support, the connecting line is tied to the other end of the swing rod and sequentially dragged to the outer side of the support through the line guiding device and the fixed pulley. The multifunctional rigid body rotation and angular momentum theorem teaching demonstration instrument can demonstrate various rigid body fixed-point fixed-shaft rotation and angular momentum theorem related experiments and is rich in function, simple in structure and good in using effect.

Description

technical field [0001] The invention relates to a multifunctional rigid body rotation and angular momentum theorem teaching demonstrator, which is suitable for demonstrating related experiments of various rigid body fixed point, fixed axis rotation and angular momentum theorems. Background technique [0002] The rotation of a rigid body is an important point in mechanics, but it is also a difficult point. Its physical essence is difficult to grasp. Therefore, no matter in the teaching of "Theoretical Mechanics" or "University Physics", students should master or understand it within a few class hours. There are great difficulties in its principle. If the relevant phenomena and laws of rigid body rotation can be demonstrated and reproduced with a teaching instrument, it will be of great help to students' understanding. At present, there are also some demonstration instruments for rigid body rotation, but the experimental items that can be demonstrated are few and simple, and ...

AI Technical Summary

Problems solved by technology

At present, there are also some demonstration instruments for rigid body rotation, but the experimental items that can be demonstrated are few and relatively simple, and it is difficult to achieve satisfactory teaching effects

If you want to demonstrate a variety of experiments on rigid body rotation and angular momentum theorems, you need to use multiple teaching testers, which will bring great difficulty and inconvenience to classroom teaching.

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