CN203659285U - Simple pendulum experiment demonstration device - Google Patents
Simple pendulum experiment demonstration device Download PDFInfo
- Publication number
- CN203659285U CN203659285U CN201420019949.1U CN201420019949U CN203659285U CN 203659285 U CN203659285 U CN 203659285U CN 201420019949 U CN201420019949 U CN 201420019949U CN 203659285 U CN203659285 U CN 203659285U
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- demonstration
- swing ball
- pendulum
- bar
- base
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Abstract
The utility model discloses a simple pendulum experiment demonstration device comprising a base. A supporting rod is arranged on the base. The top portion of the supporting rod is provided with an arc-shaped demonstration disk. The demonstration disk is vertically provided with a demonstration rod for hanging pendulum balls. The demonstration disk is provided with angle scales. The middle portion of the demonstration disk is provided with a scaleplate. A plurality of angle indicating rods are rotatably arranged on the demonstration disk. The demonstration rod is provided with a plurality of annular grooves. Ropes are rotatably arranged in the annular grooves. The free ends of the ropes are connected with the pendulum balls. The free end of the demonstration rod is provided with a rotating handle for rotating the demonstration rod. The base is provided with a timer. According to the utility model, advantages of simple structure and convenient demonstration can be realized, the pendulum angle can be determined conveniently and recorded timely, so students can conveniently and directly observe and understand, so that the teaching efficiency and quality can be improved.
Description
Technical field
The utility model relates to experiment appliance technical field, is specifically related to a kind of experiment with simple pendulum demonstration device.
Background technology
At present, in physical teaching course, generally by swing ball timing when the equilibrium position for the experiment of single pendulum, swing ball and perpendicular are produced to an angle, make swing ball depart from perpendicular and swing the swing of formation circular cone, then record the number of oscillations of single pendulum, when timer after the number of times that reaches regulation stops timing, can calculate the hunting period of single pendulum according to the numerical value of timer.Can demonstrate like this swing ball quality relation and the relation in pivot angle and cycle etc. in impact, pendulum length and the cycle on the cycle.Existing demonstrating appliance complicated operation, cannot show intuitively and when demonstration, also need the size of pivot angle to use ruler to measure pendulum length, uses more loaded down with trivial detailsly, has reduced work efficiency.In addition, can not demonstrate multiple swing balls simultaneously, thereby can not observe intuitively the swing ball of different pivot angles, different pendulum length and different quality to the impact in cycle, reduce quality of instruction.
Summary of the invention
The purpose of this utility model is exactly the defect existing for prior art, provides one simple in structure, and convenient demonstration is convenient to determine pivot angle angle timely record, facilitates student's observation directly perceived and understands, and can improve the experiment with simple pendulum demonstration device of efficiency of teaching and quality.
Its technical scheme is: experiment with simple pendulum demonstration device, comprise base, described base top is provided with support bar, the top of described support bar is provided with circular arc demonstration board, on described demonstration board, be vertically provided with the demonstration bar for hanging swing ball, described demonstration board is provided with angle groove, the middle part of described demonstration board is provided with scale, on described demonstration board, rotate and be provided with multiple angle indicator stems, described demonstration bar is provided with multiple ring grooves, in described ring groove, be movably equipped with rope body, the free end of described rope body is connected with swing ball, the free end of described demonstration bar is provided with the handle for rotating demonstration bar, described base is provided with timer.
Described swing ball comprises large swing ball and little swing ball, and described large swing ball and little swing ball are arranged in ring groove by rope body respectively.
On described base, between adjacent two swing balls, be provided with lamina of septum pellucidum.
The utility model compared with prior art, has the following advantages: simple in structure, convenient demonstration, is convenient to determine pivot angle angle timely record, facilitates student's observation directly perceived and understands, and can improve efficiency of teaching and quality.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment
See figures.1.and.2, experiment with simple pendulum demonstration device, comprise base 1, described base 1 top is provided with support bar 2, the top of described support bar 2 is provided with circular arc demonstration board 3, on described demonstration board 3, be vertically provided with the demonstration bar 5 for hanging swing ball 4, described demonstration board 4 is provided with angle groove 6, the middle part of described demonstration board 3 is provided with scale 7, on described demonstration board 3, rotate and be provided with multiple angle indicator stems 8, described demonstration bar 5 is provided with multiple ring grooves 9, in described ring groove 9, be movably equipped with rope body 10, the free end of described rope body 10 is connected with swing ball 4, the free end of described demonstration bar 5 is provided with the handle 11 for rotating demonstration bar 5, described base 1 is provided with timer 12.
Described swing ball 4 comprises large swing ball and little swing ball, and described large swing ball and little swing ball are arranged in ring groove 9 by rope body 10 respectively.Can test the swing ball of different quality to the impact in cycle by large swing ball and little swing ball.
On described base 1, between adjacent two swing balls 4, be provided with lamina of septum pellucidum 13.Can prevent that by lamina of septum pellucidum 13 swing ball 4 from colliding the swinging track affecting separately.
When experiment, in the case of identical pivot angle and pendulum length restrict the length of body 10 consistent, swing ball and the relation in 4 cycles that can probe into different quality by large swing ball and the little swing ball of different quality; Can mark respectively different pivot angles by the angle indicator stem 8 rotating on demonstration board 3, facilitate like this student intuitively to observe, be convenient to relatively also grasp, in the situation that pendulum length is identical, by the angle indicator stem 8 different pivot angle of standard respectively, two swing balls swing simultaneously, probe into the relation in different pivot angles and cycle; By the swing ball 4 of two identical pivot angles is set on demonstration board 3, be adjusted to different pendulum lengths by the scale 7 on demonstration board 3, observe the different pendulum length of two swing balls and the relation in cycle.Thereby when adjusting by rotating handle 11 length of body 10 around adjusting rope bodies 10 in ring groove 9 that makes to restrict.When demonstration, can, according to the number of oscillations of timer record swing ball, when timer after the number of times that reaches regulation stops timing, can calculate the hunting period of single pendulum according to the numerical value of timer.
Claims (3)
1. experiment with simple pendulum demonstration device, comprise base, described base top is provided with support bar, it is characterized in that: the top of described support bar is provided with circular arc demonstration board, on described demonstration board, be vertically provided with the demonstration bar for hanging swing ball, described demonstration board is provided with angle groove, the middle part of described demonstration board is provided with scale, on described demonstration board, rotate and be provided with multiple angle indicator stems, described demonstration bar is provided with multiple ring grooves, in described ring groove, be movably equipped with rope body, the free end of described rope body is connected with swing ball, the free end of described demonstration bar is provided with the handle for rotating demonstration bar, described base is provided with timer.
2. experiment with simple pendulum demonstration device according to claim 1, is characterized in that: described swing ball comprises large swing ball and little swing ball, and described large swing ball and little swing ball are arranged in ring groove by rope body respectively.
3. experiment with simple pendulum demonstration device according to claim 1, is characterized in that: on described base, between adjacent two swing balls, be provided with lamina of septum pellucidum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019949.1U CN203659285U (en) | 2014-01-14 | 2014-01-14 | Simple pendulum experiment demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019949.1U CN203659285U (en) | 2014-01-14 | 2014-01-14 | Simple pendulum experiment demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659285U true CN203659285U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420019949.1U Expired - Fee Related CN203659285U (en) | 2014-01-14 | 2014-01-14 | Simple pendulum experiment demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203659285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504969A (en) * | 2015-01-27 | 2015-04-08 | 张阁 | Simple pendulum phase demonstration experimental device |
| CN104537933A (en) * | 2015-01-13 | 2015-04-22 | 江南大学 | Angular momentum conservation law experiment instrument |
-
2014
- 2014-01-14 CN CN201420019949.1U patent/CN203659285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104537933A (en) * | 2015-01-13 | 2015-04-22 | 江南大学 | Angular momentum conservation law experiment instrument |
| CN104504969A (en) * | 2015-01-27 | 2015-04-08 | 张阁 | Simple pendulum phase demonstration experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20150114 |
|
| EXPY | Termination of patent right or utility model |