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Buoyancy demonstrator for object in liquid

A demonstrator and liquid technology, applied in the field of buoyancy demonstrator, can solve the problem of not being able to intuitively display the influence of buoyancy factors, and achieve the effect of intuition, easy realization and simple structure of the demonstration effect.

Inactive Publication Date: 2009-09-02
DAJING HIGH SCHOOL AFFILIATED TO SHANGHAI INT STUDIES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The buoyancy demonstrator obtained according to such a scheme can only simply achieve the buoyancy, and cannot intuitively show what factors the buoyancy of the object is affected by, and can only be obtained through formula calculations

Method used

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  • Buoyancy demonstrator for object in liquid
  • Buoyancy demonstrator for object in liquid
  • Buoyancy demonstrator for object in liquid

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Experimental program
Comparison scheme
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Embodiment Construction

[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0013] figure 1 Provided is a demonstration device in which the buoyancy of an object in a liquid is related to the density of the liquid. The device includes a colored bulb 4, which is hollowed out in advance, and a rubber stopper 1 is provided at the lamp head, and the rubber stopper can The bulb is fully sealed, and a small hole is provided on the rubber plug and a nut is placed in the small hole, and a long bolt 2 is screwed into the bulb through the nut (such as figure 1 shown). When using this device to demonstrate, the small particles 3 such as plastics and metal can be filled in the bulb now, and after reaching a certain weight, a rubber stopper is plugged and a bolt is screwed on. The length of the bolt entering the light bulb can mak...

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PUM

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Abstract

The invention discloses a buoyancy demonstrator for an object in liquid, which mainly comprises a buoyant density device, a buoyancy volume device and a buoyancy weight device, wherein the buoyant hull of the buoyant density device is a sealed chamber, the chamber is provided with a sealed device which can adjust the interior density of the chamber; the body of the buoyancy volume device is provided with a sealed chamber of which the volume can be expanded, the sealed chamber is connected with a gas charging device by a gas switch, and the chamber is connected with a heavy object externally; and the buoyant hull of the buoyancy weight device is a sealed container, wherein an effluent switch is arranged on the container which is also connected with the gas charging device by the gas switch, and the container is connected with a heavy object externally. The buoyancy demonstrator is simple in structure and easy in realization; and the operation is simple, the operability is strong, and the demonstration effect is intuitive, thus being convenient for teachers to complete teaching tasks quickly and conveniently.

Description

Technical field: [0001] The invention relates to a junior high school physics teaching tool, in particular to a buoyancy demonstrator capable of demonstrating that the buoyancy of an object in liquid is related to the density of the liquid, the volume of the object and the weight of the object. Background technique: [0002] The buoyancy force on an object immersed in liquid is related to the density of the liquid, the volume of the object, and the weight of the object. In the existing demonstration tools, it can only show the result of the buoyancy force on the object, such as the Chinese patent application 200620089612.3, which discloses a buoyancy demonstrator, the main technical solution is to set a small container with open ends on the inner wall of the water container, and a floating ball is arranged at the open lower end of the small container, and the floating ball will The opening of the lower end of the small container is blocked, and an upper port of a U-shaped gl...

Claims

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Application Information

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IPC IPC(8): G09B23/12
Inventor 周惠中
Owner DAJING HIGH SCHOOL AFFILIATED TO SHANGHAI INT STUDIES UNIV