CN202904962U - Teaching demonstration model for physical motion - Google Patents
Teaching demonstration model for physical motion Download PDFInfo
- Publication number
- CN202904962U CN202904962U CN 201220641318 CN201220641318U CN202904962U CN 202904962 U CN202904962 U CN 202904962U CN 201220641318 CN201220641318 CN 201220641318 CN 201220641318 U CN201220641318 U CN 201220641318U CN 202904962 U CN202904962 U CN 202904962U
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- China
- Prior art keywords
- teaching
- slideway
- demonstration model
- model
- physical motion
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Abstract
A teaching demonstration model for physical motion consists of a photoelectric digital-timing apparatus, an applied electric-field apparatus, a support base, a ball, a slideway and a spring and can be used for physical teaching. A plurality of physical theories such as a law of conservation of momentum, perfectly elastic collision, inelastic collision, energy conversion and a Newton second law can be demonstrated by different operation methods. The demonstration model provided by the utility model is simple, easy to operate and has a good demonstration-teaching effect.
Description
Technical field
The utility model relates to a kind of demonstration model for teaching, relates in particular to a kind of demonstration model for teaching that can demonstrate the multiple physical theories such as the law of conservation of momentum, perfectly elastic impact, inelastic collision, Conversion of Energy, Newton second law.
Background technology
The law of conservation of momentum, perfectly elastic impact, inelastic collision, Conversion of Energy, Newton second law are physical emphasis difficult point contents, the student is in this part knowledge of study, generally feel hard to understand, thereby make a kind of demonstration model for teaching, it is demonstrated out for understanding these abstract theories significant with the method for experiment vividly.
The utility model content
For the problems referred to above, the utility model proposes a kind of physical motion demonstration model for teaching, have easy to carryly, operate easy characteristics.
The technical scheme that its technical matters that solves the utility model adopts is: it comprises photoelectric figure time set, extra electric field device, base for supporting, bead, slideway, spring.The photoelectric figure time set comprises two photoelectricity doors and two reading displays, and the extra electric field device comprises the direct supply that is placed in base for supporting inside and two battery lead plates that face of top.Slideway is positioned on the line of two electric step geometric centers, and its inwall adopts the smooth material coating, and outer wall is painted with scale.Two photoelectricity doors place respectively 1/10 place about slideway, and the reading display places respectively the two ends of base for supporting inside, and control with photoelectricity digital timer switch.Two electrode plate are selected the square steel plate of length of side 0.1m, thickness 0.002m, place respectively the two ends of slideway, and slideway is positioned on the line of two electrode plate geometric centers, and direct supply is built in the base for supporting, and controls with the extra electric field switch.Bead is placed on the slideway, and light and the bead centre of sphere that the photoelectricity door is launched are contour.Bead has 3 kinds, comprises 2 elastic pellets, 2 rigidity beads, 1 electric globule, and its radius is 0.02m.
The beneficial effects of the utility model are to demonstrate the multiple physical theories such as the law of conservation of momentum, perfectly elastic impact, Conversion of Energy, Newton second law by different methods of operating.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among Fig. 1,1. battery lead plate, 2. spring, 3. photoelectricity door, 4. slideway, 5. reading display, 6. photoelectric figure timer switch, 7. direct supply, 8. extra electric field switch, 9. base for supporting, 10. rigidity bead, 11. elastic pellets, 12. electric globules.
Embodiment
Two photoelectricity doors (3) place respectively 1/10 place about slideway (4), and reading display (5) places respectively the inner two ends of base for supporting (9), and control with photoelectricity digital timer switch (6).Two electrode plate (1) place respectively the two ends of slideway (4), and slideway (4) is positioned on the line of two electrode plate (1) geometric center, it is inner that direct supply (7) is built in base for supporting (9), and control with extra electric field switch (8).Closed two photoelectric figure timer switch (6), choose two elastic pellets (11) or two rigidity beads (10) or an electric globule (12) and be placed on respectively two compressed springs (2) the place ahead, record two springs (2) respectively compressed length L 1, L2.Then discharge simultaneously, the record reading, the substitution respective formula is verified the correctness of its motion principle.
Claims (2)
1. physical motion demonstration model for teaching, it is comprised of photoelectric figure time set, extra electric field device, base for supporting, bead, slideway, it is characterized in that: described photoelectric figure time set comprises two photoelectricity doors and two reading displays; Described extra electric field device comprises the direct supply that is placed in base for supporting inside and two battery lead plates that face of top.
2. physical motion demonstration model for teaching according to claim 1 is characterized in that, described slideway is positioned on the line of two electric step geometric centers, and its outer wall is painted with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641318 CN202904962U (en) | 2012-11-23 | 2012-11-23 | Teaching demonstration model for physical motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641318 CN202904962U (en) | 2012-11-23 | 2012-11-23 | Teaching demonstration model for physical motion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202904962U true CN202904962U (en) | 2013-04-24 |
Family
ID=48125601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220641318 Expired - Fee Related CN202904962U (en) | 2012-11-23 | 2012-11-23 | Teaching demonstration model for physical motion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202904962U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913732A (en) * | 2016-07-11 | 2016-08-31 | 周诺 | Momentum conservation and momentum conversion experiment device |
| CN106340228A (en) * | 2016-10-19 | 2017-01-18 | 李伟嘉 | Momentum conservation law demonstration device |
| CN109272837A (en) * | 2018-12-13 | 2019-01-25 | 东北大学 | A kind of electrostatic big gun teaching demonstration instruments and application method |
| CN110288882A (en) * | 2019-06-24 | 2019-09-27 | 郑姜崇杰 | Teaching demonstration system |
-
2012
- 2012-11-23 CN CN 201220641318 patent/CN202904962U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913732A (en) * | 2016-07-11 | 2016-08-31 | 周诺 | Momentum conservation and momentum conversion experiment device |
| CN106340228A (en) * | 2016-10-19 | 2017-01-18 | 李伟嘉 | Momentum conservation law demonstration device |
| CN109272837A (en) * | 2018-12-13 | 2019-01-25 | 东北大学 | A kind of electrostatic big gun teaching demonstration instruments and application method |
| CN110288882A (en) * | 2019-06-24 | 2019-09-27 | 郑姜崇杰 | Teaching demonstration system |
| CN110288882B (en) * | 2019-06-24 | 2022-04-05 | 郑姜崇杰 | Teaching demonstration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131123 |