Circular motion experiment instrument and using method thereof

Abstract

The invention discloses a circular motion experiment instrument. The circular motion experiment instrument comprises a support, a disc and a rotating disc; the disc and the rotating disc are both mounted on the support; the disc is arranged between the rotating disc and support shafts; the disc is provided with scales; the support comprises a pair of support shafts; the upper ends of the two supporting shafts are fixedly connected with connecting blocks; the disc is fixedly connected with the connecting blocks; a stepping motor is fixedly installed on one side, close to the support shafts, ofthe disc; the driving end of the stepping motor penetrates through the disc and is fixedly connected with a rotating rod; one end of the rotating rod is fixedly clamped with a counterweight part, andthe other end of the rotating rod is fixedly clamped with a wireless power sensor; one end, away from the counterweight part, of the wireless power sensor is fixedly connected with a small ball; and the rotating shaft is rotationally sleeved with an outer rotating ring and an inner rotating ring. By virtue of the circular motion experiment instrument, vertical and horizontal plane circular motioncan be quantitatively studied, the corresponding relation between the instantaneous speed and the instantaneous force is directly measured, and the experiment is more accurate.

Description

technical field [0001] The invention relates to the technical field of physics teaching appliances, in particular to a circular motion experiment instrument and a method for using the same. Background technique [0002] In the study of the dynamics of the circular motion in senior one physics, since the force direction and speed direction of the circular motion object are constantly changing, it is difficult to measure, so generally only qualitative experiments are taught with scientific reasoning. For senior one students It is a great challenge for my thinking ability and mathematical foundation. Therefore, there are two typical difficulties in students' learning: one is the derivation and understanding of the centripetal force formula. The theoretical derivation in the textbook is more difficult for the mathematics foundation of senior one students; In the analysis of the source of centripetal force in circular motion and the understanding of critical conditions, there ar...

AI Technical Summary

Problems solved by technology

[0003] The reason why it is difficult for students to understand is that the existing research instruments for quantitative experiments on circular motion are limited. In the process of teaching, the research on circular motion in the vertical plane basically stays in qualitative theoretical derivation, without corresponding quantitative experimental exploration and Experimental exploration instruments in the vertical plane are used to help students understand, which requires high abstract thinking ability for students. It is difficult for students to experience circular motion through actual experimental equipment, which makes it difficult for students to understand the circle in physics during the learning process. sports

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