A Method of Rotating Variable Parabola Demonstration

Abstract

This patent discloses a method for demonstrating a rotating and variable parabola, which is mainly composed of water, dyed kerosene, a flat square box for holding water, a motor, a power supply, a table and a mobile phone, and is characterized in that: a plastic turntable is fixed on the rotating shaft of the motor, and a plastic turntable is filled with water. The flat square box is inserted into the groove of the plastic turntable and fixed. One end of a lightweight straight rod is perpendicular to the water-filled flat square box and fixed on the plastic turntable, and the other end is fixed to the mobile phone; the water-filled square box is made of transparent resin board A flat square box with a hole on the top, a grid engraved on one side of the water-filled flat square box, a certain amount of water and dyed kerosene are put into the water-filled flat square box, and a rubber plug is inserted into the square box hole to make the water-filled flat square box Box seal; Demonstrate fashion water flat square box and mobile phone rotate together with the motor at the same angular speed, observe the dyed kerosene liquid level in the water flat square box at the corresponding speed, explore the law of the parabolic equation of the rotating liquid level, and explore the two synchronous rotation Interface laws of immiscible liquids. The manufacturing cost is low, the production is easy, and the effect is obvious.

Description

technical field [0001] This patent relates to the demonstration of a rotating variable parabola, which belongs to the field of university mathematics and physics experiment instruments. Background technique [0002] The concept of a rotating parabola is often used in college physics classes and advanced mathematics classes. Especially for college students who are beginning to learn mechanics courses, it is difficult to prove that the liquid surface of a rotating liquid is a paraboloid, and it is difficult to understand. The inventor of this patent is also A series of studies are given in the literature [1], but some corresponding demonstration experiments are lacking. The existing technology mainly uses the Newton bucket experiment to study. Due to the viscosity of the liquid, it takes a long time for the rotating liquid to reach the same angular velocity, and the observation is relatively Difficult, and there is also a lack of experimental demonstration of the interface (bo...

AI Technical Summary

Problems solved by technology

[0002] The concept of a rotating parabola is often used in college physics classes and advanced mathematics classes. Especially for college students who are beginning to learn mechanics courses, it is difficult to prove that the liquid surface of a rotating liquid is a paraboloid, and it is difficult to understand. The inventor of this patent is also A series of studies are given in the literature [1], but some corresponding demonstration experiments are lacking. The existing technology mainly uses the Newton bucket experiment to study. Due to the viscosity of the liquid, it takes a long time for the rotating liquid to reach the same angular velocity, and the observation is relatively Difficult, and there is also a lack of experimental demonstration of the interface (boundary) of two immiscible liquids that rotate synchronously. Up to now, no better credible qualitative and quantitative demonstration experiments have been given for this problem. How to achieve rich demonstration content and obvious visual effects , credible demonstration experiment apparatus and method, this patent will solve this problem

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