Free falling body demonstration device

A technology of free fall and demonstration device, which is applied in the direction of educational appliances, instruments, teaching models, etc., and can solve problems that affect the accuracy of experiments and manual errors

Inactive Publication Date: 2022-03-04
吴宸希
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There are the following problems: it is not realized in a vacuum environment, and the falling body is manually controlled, resulting in artificial errors and affecting the accuracy of the experiment

Method used

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  • Free falling body demonstration device
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  • Free falling body demonstration device

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0037] See attached Figure 1-7 A free fall demonstration device is shown, including a base 1, the upper surface of the base 1 is equipped with a guide data transmission assembly 2, a rotation shock absorption assembly 3, a power assembly 4 and a small ball conveying assembly 5, and the outer cover of the guide data transmission assembly 2 There are two sets of photoelectric detection components 6, and a horizontal plate 7 is provided on the top of the guiding data transmission component 2, a...

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Abstract

A free fall demonstration device disclosed by the present invention comprises a base, the upper surface of the base is provided with a guide data transmission assembly, a rotary damping assembly, a power assembly and a small ball conveying assembly, the guide data transmission assembly is sleeved with two sets of photoelectric detection assemblies, and the top end of the guide data transmission assembly is provided with a transverse plate. A vacuum pipe is connected to the rotary damping assembly, the vacuum pipe and the small ball conveying assembly penetrate through the transverse plate, and the vacuum pipe is connected with the small ball conveying assembly. According to the free falling body demonstration device provided by the invention, the distance is recorded through the measuring scale, and the free falling body formula is obtained by adjusting the distance of the detection head for multiple times. Through vacuum setting, resistance in air is reduced, measured data are more accurate, meanwhile, automatic small ball feeding and falling are achieved through machinery, the whole operation does not need manual work, and manual errors are avoided.

Description

technical field [0001] The invention relates to the technical field of free-fall demonstrations, in particular to a free-fall demonstration device. Background technique [0002] Free fall is an important content of physics course teaching in middle school. It is necessary for students to measure the acceleration of gravity through free fall experiments on the basis of mastering the principle of free fall. In the process of demonstrating free fall, in order to measure the acceleration of gravity, it is necessary to record the distance and time for the weight to fall. Because the classroom demonstration cannot provide a large falling distance, and it is difficult to perform accurate timing, in most cases, the value of the acceleration of gravity obtained from the demonstration and measurement in the classroom deviates greatly from the theoretical value, and students only passively accept free fall and acceleration of gravity , The mastery of knowledge points is not deep. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/10
CPCG09B23/10
Inventor 吴宸希
Owner 吴宸希
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