A buoyancy demonstration device for physics class

Abstract

The invention discloses a buoyancy demonstration device for physics classes, which comprises a support mechanism, a recovery mechanism and a demonstration mechanism. The support mechanism consists of a bottom support plate, a micro air pump, a first electromagnetic valve, a limit slide bar, a lifting support plate, and a fixed spring , a limiting plate and a folding air cylinder, one end of the bottom supporting plate is fixedly connected with a micro air pump, the four corners of the top of the bottom supporting plate are fixedly connected with a limit slide bar, and the middle position of the top of the bottom supporting plate is fixedly connected with a folding air cylinder, through The support mechanism can flexibly demonstrate the height of the bucket through the micro air pump, which is convenient for classroom demonstration and increases the flexibility of the structure of the demonstration device. By setting up a circulating water tank, it is convenient to flexibly control the height of the water level in the demonstration bucket and to demonstrate the change of buoyancy. An electromagnet is set to facilitate the control of the position of the suspension block in the liquid, so as to facilitate the display of the positional relationship of the suspension block under the action of buoyancy, which is helpful to deepen students' memory and facilitate students' understanding.

Description

Technical field: [0001] The invention relates to the technical field of educational equipment, in particular to a buoyancy demonstration device for physics lessons. Background technique: [0002] In physics teaching, buoyancy is the learning part of junior high school physics. In the teaching process of buoyancy knowledge, some auxiliary demonstration devices are mostly used to help students understand. The existing demonstration devices are rigid in structure and cannot flexibly demonstrate the height of the bucket. It is convenient to use in classroom demonstrations, but it cannot increase the flexibility of the structure of the demonstration device, it is not convenient to flexibly control the height of the water level in the demonstration bucket, it is not convenient to demonstrate the change of buoyancy, it is not convenient to control the position of the suspension block in the liquid, and it is impossible to demonstrate the buoyancy of the suspension block The positio...

AI Technical Summary

Problems solved by technology

[0002] In physics teaching, buoyancy is the learning part of junior high school physics. In the teaching process of buoyancy knowledge, some auxiliary demonstration devices are mostly used to help students understand. The existing demonstration devices are rigid in structure and cannot flexibly demonstrate the height of the bucket. It is convenient to use in classroom demonstrations, but it cannot increase the flexibility of the structure of the demonstration device, it is not convenient to flexibly control the height of the water level in the demonstration bucket, it is not convenient to demonstrate the change of buoyancy, it is not convenient to control the position of the suspension block in the liquid, and it is impossible to demonstrate the buoyancy of the suspension block The positional relationship under the action cannot deepen students' memory and is not easy for students to understand

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