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Oblique projectile motion test stand

A technology of experimental racks and movement, applied in the direction of educational appliances, instruments, teaching models, etc., can solve the problems of long time experience, difficult control of water volume, impact on the environment, etc., achieve simple structure, improve the accuracy of experimental data, and make simple effects

Inactive Publication Date: 2014-12-24
徐文余
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AI Technical Summary

Problems solved by technology

[0002] At present, most of the existing oblique throwing experimental instruments use water to be sprayed from the nozzle, and the initial velocity is obtained by measuring the incident angle and horizontal displacement. The experimental instruments with this structure have the following disadvantages: 1. The water is sprayed from the nozzle. Finally, it falls on the ruler, and it takes a long time in the air. Due to the friction between water and air, it is easy to cause a large error; 2. When used in the classroom, water droplets will splash and affect the environment; 3. , The amount of water sprayed from the nozzle is not easy to control

Method used

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  • Oblique projectile motion test stand

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Embodiment Construction

[0009] Oblique throwing motion test frame, described test frame comprises support 2, protractor 1, ejection device 3 and tape measure 4, and described protractor 1 is fixedly arranged on support 2, and described ejection device 3 is arranged on the center of protractor 1, The ejection device 3 is adjustable on the protractor 1, the tape measure 4 is fixed on the zero scale line of the protractor 1, and the ejection device 3 is a toy crossbow.

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Abstract

The invention relates to an oblique projectile motion test stand comprising a support, a protractor, a catapult and a tape; the protractor is fixed on the support; the catapult is arranged in a center of the protractor and a departure angle of the catapult is adjustable on the protractor; the tape is fixed on a zero graduation line of the protractor. The test stand is simple in structure and making, convenient in usage, the catapult is used for replacing a conventional water sprayer so as to provide more interests without wetting the environment; in addition, the angle of an oblique projectile object can be conveniently changed in usage, so initial speed can be consistent when the test starts, thus improving testing data accuracy.

Description

technical field [0001] The invention relates to a classroom teaching experiment appliance, in particular to an oblique throwing exercise experiment frame. Background technique [0002] At present, most of the existing oblique throwing experimental instruments use water to be sprayed from the nozzle, and the initial velocity is obtained by measuring the incident angle and horizontal displacement. The experimental instruments with this structure have the following disadvantages: 1. The water is sprayed from the nozzle. Finally, it falls on the ruler, and it takes a long time in the air. Due to the friction between water and air, it is easy to cause a large error; 2. When used in the classroom, water droplets will splash and affect the environment; 3. 1. The amount of water sprayed from the nozzle is not easy to control. Contents of the invention [0003] In order to solve the above problems, the present invention provides an oblique throwing test frame with simple structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/08
Inventor 徐文余
Owner 徐文余
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