Experimental device for analyzing and demonstrating the movement of two balls falling successively

A technology of sports conditions and experimental equipment, applied in the field of teaching equipment, can solve the problems of unfixed spacing, attracting students, and distracting students from observing small balls, so as to achieve the effect of convenient observation

Active Publication Date: 2018-12-11
张阁
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of experiment has the following shortcomings: first, the movement of the fingers when releasing the ball will attract the students' attention and distract the students from observing the movement of the ball; The time interval for releasing the balls is different, so when the next ball is released, the distance between it and the first ball is not fixed
Therefore, in such an experiment, students cannot well observe the change of the distance between the two balls during their movement.

Method used

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  • Experimental device for analyzing and demonstrating the movement of two balls falling successively

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Embodiment Construction

[0008] The present invention demonstrates the experimental device for analyzing and demonstrating the movement of two balls falling successively. Iron armor 9, electromagnet B 10, "V"-shaped metal contact piece 11, metal ring 12, light metal rod 13, small ball A 14, small ball B 15, the hook 2 is installed on one side of the bottom plate 1 ; Described power supply first 5, power supply second 6, electric key first 7, electric key second 8 are installed on the bottom plate; described electromagnet first 9 is installed on the left position below the bottom plate 1; described electromagnet second 8 is installed At the lower right position of the bottom plate 1; one end of the vertical rod A 3 is fixed under the bottom plate 1 and on the left side of the electromagnet B 8, and the other end of the vertical rod A 3 is fixed with a "V"-shaped metal contact Sheet 11; one end of the vertical rod B4 is fixed below the bottom plate 1 and is located on the right side of the electromagnet...

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Abstract

The invention discloses a successively-falling two ball motion analysis and demonstration experiment device, which at least comprises a base board (1), hooks (2), a vertical bar A (3), a vertical bar B (4), a power supply A(5), a power supply B(6), a switch A (7), a switch B (8), an electromagnet A(9), an electromagnet B (10), a V-shaped metal contact (11), a metal circular ring (12), a light metal rod (13), a ball A (14) and a ball B (15). By closing the switch A and the switch B, the ball A and the ball B are absorbed to the electromagnet A and the electromagnet B respectively; by disconnecting the switch B, the ball B and the ball A fall successively; and in the falling process, students can well observe that the distance between the two balls increases gradually.

Description

technical field [0001] The invention relates to a teaching equipment, in particular, it is suitable for experiment demonstration in the teaching of free fall movement. Background technique [0002] In high school physics teaching, the laboratory does not have a good demonstration experimental device for the analysis of the movement of two balls falling one after another. In teaching, the teacher can only explain in theory that the distance between two small balls falling successively at the same position is constantly increasing; Observe how the distance between the two balls changes as they fall. However, this kind of experiment has the following shortcomings: first, the movement of the fingers when releasing the ball will attract the students' attention and distract the students from observing the movement of the ball; The time interval for releasing the balls is different, so when the next ball is released, the distance between it and the first ball is not fixed. There...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/18
Inventor 不公告发明人
Owner 张阁
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