Centripetal force verification device

Abstract

The invention relates to the field of teaching equipment, in particular to a centripetal force verification device. 'Centripetal force' is a required course of the modern physics subject, is related in junior high school, is studied deeply in senior high school, and is also a research focus in university. In physics teaching, compared with spoon-feeding type teaching, students can understand and grasp learned knowledge more profoundly through experimental research type teaching, the students can fully participate in experiments, and each learning group can measure to obtain different experiment data and conducts calculating and verification according to the measured experiment data. The centripetal force verification device has the characteristics of easy operation, clear force analysis and accurate measurement, comparison and verification can be conducted through multiple experiments in a classroom, thus the students more quickly know about and grasp the focus and the difficulty related to the centripetal force, and a solid foundation is laid for later in-depth study.

Description

technical field [0001] The invention relates to the field of teaching equipment, in particular to a centripetal force verification device. Background technique [0002] "Centripetal force" is a compulsory course in modern physics. It has been studied in junior high school, and in-depth research is required in high school. It is also the focus of research in universities. In physics teaching, experimental and seminar teaching is more effective than cramming teaching. Let students deeply understand and master the knowledge they have learned. Students can be fully involved in the experiment. Each study group can experiment and discuss in person. [0003] The centripetal force verification device in the prior art is generally two sets of different pulleys connected by belts. A rotating arm is arranged at the top, and two decks are arranged on the rotating arm. The teacher puts small balls of the same weight or different weights into the decks and shakes them. Handle, after the ...

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Problems solved by technology

[0003] The centripetal force verification device in the prior art is generally two sets of different pulleys connected by belts. A rotating arm is arranged at the top, and two decks are arranged on the rotating arm. The teacher puts small balls of the same weight or different weights into the decks, and shakes them. Handle, after the rotation speed is relatively stable, observe the decline ratio of the drums at the top of the two pulleys to verify the amount related to the centripetal force. Using a hand crank for such a device not only cannot stabilize the rotation speed, but also can only be used for rough qualitative verification, and cannot be discussed quantitatively. Students In the experiment, it is only understood, and it is not sure whether there are other unknown relationship quantities that can affect the centripetal force; besides, there are only two decks on the rotating arm, the experimental data is limited, and the convincing power is not strong, so it can only be used as a demonstration. Cannot be used as a verification device

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