Multifunctional physical exploration experiment demonstration instrument

A multi-functional physics and demonstrator technology, which is applied in the field of teaching aids, can solve the problems that the teacher does not verify the kinetic energy theorem, and it is difficult to succeed, and achieve the effect of improving the shortage of dot timers and paper tape tests, easy operation and diversified functions

Inactive Publication Date: 2015-08-12
SOUTHWEST UNIVERSITY
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Problems solved by technology

This experiment is difficult to succeed in high school teachi

Method used

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  • Multifunctional physical exploration experiment demonstration instrument
  • Multifunctional physical exploration experiment demonstration instrument
  • Multifunctional physical exploration experiment demonstration instrument

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Embodiment Construction

[0019] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0020] As shown in the figure, the demonstration instrument of this embodiment includes an arc guide rail 1, a height gauge 2, a slide rail 3, a horizontal scale 4, a horizontal air cushion guide rail 5, an LED light 6, a controller 7, a spring 8, an inductor 9, Single-chip microcomputer 10 and air outlet conduit 11. In the actual use process, explore the demonstration method of Newton's first law: spread different material fabrics on the upper surface of the inner layer of the horizontal air cushion guide rail, and change the roughness of the guide rail. Let the ball roll down from the static on the arc guide rail, observe the distance of the ball moving on the horiz...

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Abstract

The invention discloses a multifunctional physical exploration experiment demonstration instrument. The multifunctional physical exploration experiment demonstration instrument includes a segment of vertically arranged arc-shaped guide rail and a segment of horizontally arranged air track, small ball rolling sliding grooves are arranged on the arc-shaped guide rail and the air track, a small ball induction device is also arranged on the horizontal air track, one side of the horizontal air track, which is away from the arc-shaped guide rail, is also provided with a spring hanger, and the demonstration instrument also includes a height gauge arranged at one side of the arc-shaped guide rail and used for measuring the initial height of a small ball and a horizontal calibrated scale arranged at one of the air track and used for measuring horizontal motion distance of the small ball. The multifunctional physical exploration experiment demonstration instrument provided by the invention can restore the condition of a smooth horizontal plane to a large extent and help students to understand the first law of Newton, and at the same time, the demonstration instrument can also explore the law of conservation of mechanical energy and the law of kinetic energy.

Description

technical field [0001] The invention belongs to the field of teaching appliances, and in particular relates to a multifunctional physical exploration experiment demonstrator. Background technique [0002] In junior high school textbooks, the method used to explore Newton’s first law is to let the ball roll down the slope at the same height, and observe the stopping distance on the horizontal surface of different materials. The conclusion is that the smoother the horizontal surface, the smaller the ball. The farther the distance is, and finally it is concluded through logical reasoning that if the horizontal plane is smooth, the ball will always move in a straight line at a constant speed. However, this is always a hypothetical experiment with no basis in reality, and it is difficult for students to break the pre-scientific concept in their minds that force is the reason for maintaining the motion of objects. In high school textbooks, the conservation of mechanical energy is...

Claims

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Application Information

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IPC IPC(8): G09B23/10
CPCG09B23/10
Inventor 邹漪顾培皓陈晓莉
Owner SOUTHWEST UNIVERSITY
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