Demonstration device for physics teaching of gravitational acceleration

Abstract

The invention discloses a demonstration device for physics teaching of gravitational acceleration, and relates to the technical field of physics teaching equipment. The demonstration device for physics teaching of gravitational acceleration comprises a square supporting column body, wherein an adjusting mechanism, a storage mechanism, a buffer mechanism, a mounting rod, a second photogate and a display screen are arranged on the square supporting column body, a base is welded to the outer surface of the bottom of the square supporting column body, and one end of the mounting rod penetrates through the hole and extends into the square supporting column body. According to the demonstration device for physics teaching of the gravitational acceleration, the whole demonstration process is morevisually displayed in front of teachers and students, various data can be read from the display screen in the experiment process, and students can better understand and master the nature and significance of the gravitational acceleration; and meanwhile, the free falling motion of an experimental iron ball is achieved by adopting an electromagnetic braking mode, the external force influence on theexperimental iron ball during free falling is reduced, and the experimental error is reduced.

Description

technical field [0001] The invention relates to the technical field of physics teaching equipment, in particular to a demonstration device for physics teaching of acceleration of gravity. Background technique [0002] The acceleration of gravity is also called the acceleration of free fall. The object is only affected by gravity. The acceleration generated when it falls freely. At the same place on the ground, the acceleration of gravity of various objects is the same. The acceleration of gravity at different places is slightly different: the equator is smaller, and the two poles at the same latitude, the higher the distance from the ground, the smaller the gravitational acceleration. [0003] The measurement of the acceleration of gravity is a basic experiment in physics teaching. At present, some of the acceleration of gravity demonstration devices require the use of multiple instruments in the process. The operation is complicated and cumbersome, and it is not convenient ...

AI Technical Summary

Problems solved by technology

[0003] The measurement of the acceleration of gravity is a basic experiment in physics teaching. At present, some of the acceleration of gravity demonstration devices require the use of multiple instruments in the process. The operation is complicated and cumbersome, and it is not convenient for teachers and students to complete independently. The teaching effect is poor, it is difficult for students to understand and learn the meaning and nature of the acceleration of gravity, and most of the devices are large in size and mass, inconvenient to move, limited in practicability and scope of application, which is not conducive to promotion and use

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