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Blackboard also used for physical experiments

A physical experiment, blackboard technology, applied in the field of multifunctional blackboards, to achieve the effect of deepening intuitive understanding

Inactive Publication Date: 2018-06-29
裴禹焜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the push-pull blackboard itself currently only carries the body function of the blackboard

Method used

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  • Blackboard also used for physical experiments
  • Blackboard also used for physical experiments
  • Blackboard also used for physical experiments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 2 As shown in the figure, when doing the physical experiment of force interaction, the second moving blackboard 3 is pulled from the right to the left by a certain distance, and two spring balances 11 are placed between the two hooks 4; The blackboard 3 continues to move to the left, at this time, the spring balance shows the current pulling force to the left. Teachers and students can easily record data or draw graphs to confirm that the forces are interacting and the magnitude of the force is the same.

Embodiment 2

[0023] like image 3 As shown, when doing the distance experiment, the second moving blackboard 3 is pulled a certain distance from right to left, the distance indicator 12 is placed in the vacant position of the blackboard, and the distance indicator is powered on. The distance sensor transmits the signal to the distance indicator 12 through the distance sensor lead wire 9 and the distance indicator connecting wire 13 to display the distance between the second moving blackboard 3 and the overall frame 1 . In this embodiment, the ZJH-35 type distance indicator is selected as the distance indicator. Of course, other types of distance indicators can also be selected according to the experimental needs. The distance sensor is CS38-2 ultrasonic sensor, of course, other sensors with different types and functions can also be selected according to actual needs.

Embodiment 3

[0025] like Figure 4 As shown, when doing the plate capacitor experiment, the second moving blackboard 3 is pulled away from right to left for a certain distance, and the electroscope 14 is placed on the vacated position of the blackboard. Connected to the terminal block 7 and the ground electrode 10. The terminal of the plate capacitor on the second mobile blackboard 3 is connected to the ground electrode 10, the terminal of the plate capacitor on the general frame 1 is connected to the spherical discharge terminal of the electroscope 14, and the shell of the electroscope 14 is connected to the ground electrode. 10 on.

[0026] When the second moving blackboard is moved from right to left, the distance between the plate capacitors changes, and the opening and closing angle of the aluminum foil of the electroscope changes.

[0027] In the above three embodiments, the heights between the hooks 4, the plate capacitor electrodes 5, the distance sensors 6 and the terminal block...

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Abstract

The invention discloses a blackboard also used for physical experiments. The blackboard comprises an overall frame, a first movable blackboard and a second movable blackboard, wherein the first and second movable blackboards are movably arranged on the overall frame, and the first and second movable blackboards shift on the overall frame; and hangers, plate capacitor electrodes, distance sensors,terminal strips, outgoing wires of the plate capacitor electrodes and outgoing wires of the distance sensors are correspondingly arranged on the overall frame and any one edge of the first / second movable blackboard, separately. Some related physical experiments are made by means of distance generated by moving the blackboard, for example, experiments of interaction of forces, distance experimentsor plate capacitor experiments. Experimental teaching is finished in teaching based on distance change of the movable blackboard to deepen intuitive understanding of students on physical knowledge, sothat teaching and experiments are integrated.

Description

technical field [0001] The invention relates to a multifunctional blackboard, in particular to a blackboard which also serves as a physical experiment. Background technique [0002] The widely used push-pull blackboard expands the area of ​​the blackboard, facilitates the writing of teachers, and improves the teaching effect. However, the push-pull blackboard itself currently only carries the body function of the blackboard. In fact, for push-pull blackboards, a change in distance is created between the edge of the moving blackboard and the overall frame. The change of distance involves basic elements of physical knowledge, such as mechanics and electricity. In the process of physics teaching, theory and experiment are inseparable. If the above physical characteristics of the blackboard are used to expand the blackboard function and add the experimental function, the teaching effect can be improved and the utilization rate of class hours can be improved. SUMMARY OF THE ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04
CPCB43L1/04
Inventor 裴禹焜
Owner 裴禹焜
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