Physical horizontal parabolic experiment demonstration device

Abstract

The invention belongs to the technical field of education, in particular to a physical horizontal parabolic experiment demonstration device, and aims at the problem of large experiment error existingin an existing horizontal parabolic experiment demonstration device. Through a proposed scheme, the device comprises a supporting base, wherein a first supporting plate which is vertically arranged isconnected to the central outer wall of the top of the supporting base through bolts, and second supporting plates which are vertically arranged are connected to the outer walls of the two sides of the top of the first supporting plate through bolts; the top outer walls of the adjacent sides of the two second supporting plates are respectively connected with the same horizontally arranged rotatingshaft through bearings, and the outer wall of the middle part of the circumference of the rotating shaft is provided with white paper in a sleeving mode. According to the physical horizontal parabolic experiment demonstration device, lifting bolts are arranged at the four corners of the supporting base, and a horizontal ruler is arranged at one end of the supporting base, the heights of the fourcorners of the supporting base can be changed through the four lifting bolts, the level of the supporting base is adjusted, and then the experimental accuracy is improved.

Description

technical field [0001] The invention relates to the field of education technology, in particular to a demonstration device for a physics flat throwing experiment. Background technique [0002] In the curve motion learning of high school physics, the changes of speed and displacement will be reflected in the plane rectangular coordinate system, so that the curve motion will be divided into two mutually perpendicular linear motions, which is easy to understand and calculate. It is decomposed into uniform linear motion in the horizontal direction and free fall motion in the vertical direction. In order to show the students the effect of the horizontal and vertical motion of the horizontal throwing motion, the high school physics teacher will use a demonstration device for the horizontal throwing experiment. [0003] At present, the flat throwing experimental demonstration devices used by high school physics teachers are all composed of release devices and dot-drawing devices. M...

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Problems solved by technology

[0003] At present, the flat-throwing experimental demonstration devices used by high school physics teachers are composed of release devices and dot-drawing devices. Most of the release devices are manually released by teachers. This release method will give the small iron balls a fine The initial speed will affect the accuracy of the experimental data. The current dot and line devices are all dotted by copy paper or small iron balls dipped in ink or drawn by the gravitational force of magnetic powder. These dot and line methods have The dots are not clear, and there are many external force factors in the process of drawing lines, resulting in large errors in the drawing lines

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