Static ball jumping experiment instrument internally provided with paraffin flame scale block

Abstract

The invention discloses a static ball jumping experiment instrument internally provided with a paraffin flame scale block and belongs to college physics teaching experiment instruments. The static ball jumping experiment instrument internally provided with the paraffin flame scale block is composed of the flame scale block, a transparent square box and a plastic comb and is characterized in that the flame scale block is a small block made by the flame ash scale formed by burning a glass test tube with paraffin flames, the transparent square box is a cuboid defined by transparent plastic pieces, the width of the plastic comb is no smaller than that of the transparent square box, and the flame scale block is put into the transparent square box to be sealed. Compared with the prior art, the static ball jumping experiment instrument internally provided with the paraffin flame scale block is characterized in that an aluminum foil metal ball is replaced by the flame scale block, a metal electrode plate is replaced by the transparent plastic pieces, an individual high-voltage direct-current power supply is not needed, the size is small, carrying and operating are facilitated, manufacturing is extremely easy, an effect is obvious, more education functions will be added when the static ball jumping experiment instrument is popularized in teaching, and the good technical guarantee is provided for people to further perform theoretical research.

Description

technical field [0001] The patent of the invention relates to the demonstration of a static ball jumping experimental instrument with a built-in paraffin flame scale block, which belongs to the field of university physics teaching experimental instruments. Background technique [0002] In college physics courses, static electricity is an important content, and the application of electrostatic induction is the content that everyone pays attention to. Over the years, in order to help students correctly understand this concept and apply electrostatic induction, some demonstration experiments have been set up in conjunction with teaching, such as electrostatic swinging ball experiment, electrostatic roller experiment, electrostatic jumping ball experiment, etc. Among them, the Chinese patent "Electrostatic Jumping Ball Demonstration Device" CN03277642 .X is to place light metal balls made of aluminum foil between the two metal plate electrodes, and the metal balls bounce back an...

AI Technical Summary

Problems solved by technology

Although the existing electrostatic jumping ball demonstration device has solved some needs to a certain extent, the experiment must be completed with an external high-voltage DC power supply, and students think that only the metal electrode plate and the metal ball will have the electrostatic jumping ball phenomenon. It is inconvenient...

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