Electricity demonstration box

Abstract

The invention discloses an electricity demonstration box which comprises a box body. A bottom plate (1) and a plurality of electricity components respectively connected with a socket are arranged inside the box body. The bottom plate (1) is provided with a plurality of jacks matched with the sockets of the electricity components which are movably connected with the bottom plate (1) through the sockets. Each electricity component comprises a motor model (4), a transformer (5), a voltmeter (6), an ammeter (7), a relay (8), a rectifier (9), an inductive coil, a potentiometer, a lamp holder, a compass, a buzzer, two capacitors (10), two resistors (2), a plurality of wiring sockets (3), a plurality of plug wires, a plurality of switches and a plurality of power source positioning devices. Each plug wire comprises a wire and plugs welded at the two ends of the wire, wherein the plugs are mutually connected. The electricity demonstration box has the advantages that the time taken to prepare an experiment is saved, working efficiency is improved, the innovation ability of students is cultivated conveniently, management is convenient, and the elements cannot loss easily.

Description

technical field [0001] The invention relates to an experimental device for teaching physics courses in junior high schools, in particular to an electrical demonstration box. Background technique [0002] Electrical experiments are a large part of the junior high school physics curriculum, which contains many types and times of experiments, and many electrical components need to be used. In the existing teaching process of physical and electrical experiments in junior high schools, these electrical components and devices required for other experiments (such as mechanical experiment devices) are placed in the laboratory together. If a certain experiment needs to be completed in groups, it is necessary to The preparation teacher spends a lot of time in advance to find out the electrical components needed for the experiment, and allocates a set of equipment on each test bench. This teaching method has the following defects: First, the experiment preparation teacher’s The prepar...

AI Technical Summary

Problems solved by technology

In the existing teaching process of physical and electrical experiments in junior high schools, these electrical components and devices required for other experiments (such as mechanical experiment devices) are placed in the laboratory together. If a certain experiment needs to be completed in groups, it is necessary to The preparation teacher spends a lot of time in advance to find out the electrical components needed for the experiment, and allocates a set of equipment on each test bench. This teaching method has the following defects: First, the experiment preparation teacher’s The preparation workload is heavy, it takes a lot of time, and wastes energy; secondly, during the experiment process, the teacher has already helped to find out the electrical components that students need to use, which is not conducive to the cultivation of students' independent hands-on ability, independent thinking and innovation ability; Finally, since electrical components are placed together with experimental devices of other types of experiments, they are easy to lose and difficult to keep

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