A liquid pressure demonstrator for high school physics teaching

Abstract

The invention discloses a liquid pressure intensity demonstrator for high school physics teaching. The demonstrator comprises a liquid penetrating part and a pressure intensity measurement part, wherein the liquid penetrating part comprises a main hollow column-shaped column body, the bottom of the main hollow column-shaped column body is provided with a bottom connecting plate structure which isstructurally integrated with the bottom, the bottom of the bottom connecting plate structure is provided with a connecting rod, the bottom of the connecting rod is provided with a gravity hemispheroid, the top of the main hollow column-shaped column body is provided with a top limiting plate structure which is structurally integrated with the top, and the center of the main hollow column-shaped column body is provided with a hollow mobile space. According to the demonstrator, equivalent replacement is utilized, the pressure intensity values of liquid at different depths are determined througha difference between a known air pressure value and a current air pressure value, in addition, the device can be connected with air pipelines with different lengths, the pressure intensity measurementof liquid with a relatively great depth is changed and realized, moreover, the interior of the device does not come into contact with liquid, so that the service life of the device is prolonged, andthe practicability is strong.

Description

technical field [0001] The invention relates to the technical field of high school physics teaching, in particular to a liquid pressure demonstrator for high school physics teaching. Background technique [0002] At present, the knowledge of pressure is learned in the teaching process of high school, and the pressure demonstrator used in physics teaching is generally a high-precision instrument with high cost, which is not suitable for teaching in poor areas. Students can only use theoretical knowledge. Learning is relatively abstract and has certain limitations. Contents of the invention [0003] The object of the present invention is to provide a liquid pressure demonstrator for high school physics teaching, to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a liquid pressure demonstrator for high school physics teaching, comprising a ...

AI Technical Summary

Problems solved by technology

[0002] At present, the knowledge of pressure is learned in the teaching process of high school, and the pressure demonstrator used in physics teaching is generally a high-precision instrument with high cost, which is not suitable for teaching in poor areas. Students can only use theoretical knowledge. Learning is relatively abstract and has certain limitations

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