A circular motion experiment instrument and its use method

By designing a circular motion experimental instrument containing a bracket, a disc, a turntable and a sensor, the problem of difficulty in quantitatively exploring circular motion in the prior art is solved, and the intuitive verification of the centripetal force formula and students' deep understanding are achieved.

CN110807976BActive Publication Date: 2025-03-25曹骢
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Patent Information

Application Number
CN201911152866.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-11-22
Publication Date
2025-03-25
Estimated Expiration
2039-11-22

AI Technical Summary

Technical Problem

The existing circular motion experimental exploration equipment is difficult to quantitatively explore, which makes it difficult for students to understand circular motion in physics, especially in terms of obtaining and understanding the formula of centripetal force.

Method used

A circular motion experimental instrument was designed, including a bracket, a disc, a turntable, a stepper motor, a wireless power sensor, a photoelectric sensor and a data collector. Through these components, the correspondence between instantaneous velocity and instantaneous force can be directly measured and the centripetal force formula can be verified.

Benefits of technology

Quantitative study of vertical and horizontal plane circular motions is realized, and the relationship between centripetal force and mass, velocity and radius is directly measured, making the experiment more accurate and intuitive, improving classroom efficiency and teaching effect, and enhancing students' innovative ability and exploration methods.

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Abstract

The invention discloses a circular motion experiment instrument, including a bracket, a disc and a turntable, wherein the disc and the turntable are both mounted on the bracket, the disc is arranged between the turntable and a support shaft, a scale is arranged on the disc, the bracket includes a pair of support shafts, the upper ends of the two support shafts are fixedly connected with a connecting block, the disc is fixedly connected with the connecting block, a stepper motor is fixedly installed on the side of the disc close to the support shaft, the driving end of the stepper motor passes through the disc and is fixedly connected with a rotating rod, one end of the rotating rod is fixedly connected with a counterweight, the other end of the rotating rod is fixedly connected with a wireless power sensor, the end of the wireless power sensor away from the counterweight is fixedly connected with a small ball, and an outer rotating ring and an inner rotating ring are rotatably sleeved on the rotating shaft. The invention can quantitatively study the circular motion of vertical and horizontal planes, directly measure the corresponding relationship between instantaneous velocity and instantaneous force, and make the experiment more accurate.
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