Transverse wave demonstration instrument for teaching

A demonstration instrument and transverse wave technology, applied in the field of teaching tools, can solve the problems of lack of participation in the video method, poor intuitiveness of pictures, lack of transverse wave demonstration devices, etc., and achieve the effects of intuitive effect, high degree of participation, and easy use.

Inactive Publication Date: 2021-12-07
重庆师范大学附属初级中学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In physics teaching, shear wave is an important teaching point, but the existing teaching methods can only be demonstrated through pictures or videos. The picture is not intuitive, and the video method has no sense of participation, and lacks an ideal shear wave. Demonstration device

Method used

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  • Transverse wave demonstration instrument for teaching
  • Transverse wave demonstration instrument for teaching
  • Transverse wave demonstration instrument for teaching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see Figure 1-2 , a teaching shear wave demonstration instrument, comprising a base 1 and a front display board 2, the front display board 2 is fixed on the front side of the top of the base 1, the front display board 2 and the base 1 are arranged perpendicular to each other, and a plurality of The vertical front chute 3 has the same spacing between the plurality of front chute 3, and a display structure is provided on the plurality of front chute 3 for displaying transverse waves. The display structure includes a plurality of display buttons 4, The number of display buttons 4 is the same as that of the front chute 3 and they are arranged in one-to-one correspondence. The display buttons 4 are attached to the front side of the front display board 2 and are slidably connected to it. Each display button 4 is connected to a connecting rod 6, and the connecting rod 6 Inserted into the front chute 3 and slidably connected with it, the base 1 is also provided with a driving s...

Embodiment 2

[0025] refer to Figure 4, on the basis of Embodiment 1, the lower half of the corrugated wood installation board 7 has an internal threaded hole 17 through which both sides pass through, and an inwardly recessed elongated slot 18 is opened on the top of the corrugated wood installation board 7. The corrugated wood mounting plate 7 sides are inserted with fastening bolts 19 that are rotatably connected with the threads, and the front ends of the fastening bolts 19 are inserted into the draw-in groove 18. When installing the corrugated wood, the bottom of the corrugated wood is inserted in the draw-in groove 18 and connected The inner bottom surfaces of the card slots 18 fit together, and the fastening bolts 19 are screwed inward so that the front ends of the fastening bolts 19 are pressed against the corrugated wood. During the demonstration, the corrugated wood can be prevented from shifting and falling out under the action of mutual force, ensuring the demonstration effect ....

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Abstract

The invention discloses a transverse wave demonstration instrument for teaching. The transverse wave demonstration instrument comprises a base and a front demonstration board, the front demonstration board is fixed on the front side of the top surface of the base, the front demonstration board and the base are arranged to be perpendicular to each other, the front demonstration board is provided with a plurality of vertical front sliding grooves, the plurality of front sliding grooves are provided with demonstration structures used for performing transverse wave demonstration, and each demonstration structure comprises a plurality of demonstration buttons; and the transverse wave demonstration instrument can display the process that adjacent demonstration buttons are driven in succession, the characteristic that the waveform of transverse waves is not changed in the propagation process is displayed, meanwhile, all mass points do not migrate along with the waves in the propagation process of the waves, only vibrate up and down at the balance position and reach the maximum displacement in succession are displayed, students can feel by themselves through manual operation, the participating degree is high, the driving structure is manually operated, the use is simple and convenient, the effect is intuitive, the teaching content needing to be demonstrated can be slowly demonstrated to students in the process of explaining the teaching content needing to be demonstrated by a teacher, and various teaching difficulties are broken through.

Description

technical field [0001] The invention relates to a teaching appliance, in particular to a teaching shear wave demonstration instrument. Background technique [0002] The transverse wave is a kind of wave. The characteristic of the transverse wave is that the vibration direction of the particle is perpendicular to the propagation direction of the wave. During the propagation of the transverse wave, wherever the wave reaches, each particle vibrates near its equilibrium position. Since the wave propagates forward at a finite speed, the particles that start to vibrate later lag behind the ones that start to vibrate for a while, that is, there is a phase difference. [0003] In physics teaching, shear wave is an important teaching point, but the existing teaching methods can only be demonstrated through pictures or videos. The picture is not intuitive, and the video method has no sense of participation, and lacks an ideal shear wave. Demonstration device. Contents of the invent...

Claims

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Application Information

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IPC IPC(8): G09B23/06
CPCG09B23/06
Inventor 张忠俊黄睿万培玉
Owner 重庆师范大学附属初级中学校
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