CN202632598U - Energy and momentum conservation verification tester - Google Patents
Energy and momentum conservation verification tester Download PDFInfo
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- CN202632598U CN202632598U CN 201220310389 CN201220310389U CN202632598U CN 202632598 U CN202632598 U CN 202632598U CN 201220310389 CN201220310389 CN 201220310389 CN 201220310389 U CN201220310389 U CN 201220310389U CN 202632598 U CN202632598 U CN 202632598U
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- 238000012795 verification Methods 0.000 title claims abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses an energy and momentum conservation verification tester, which comprises a rack playing fixing and supporting roles, a support rod fixed above the rack, and an active ball suspended on the support rod, and is characterized in that a passive ball is placed below the support rod; the rack is provided with a height indicating board for marking the height of the active ball to be pulled up, and one side of the rack is horizontally provided with a horizontal distance indicating board for marking the moving distances of the active ball and the passive ball; and the height indicating board and the horizontal distance indicating board are both provided with scales. According to the utility model, by means of arranging the active ball carrying out cycloid motion and the passive ball colliding with the active ball in terms of momentum conservation, the energy conversation law and the momentum conversation law can be verified effectively by measuring the moving distances of the active ball and the passive ball in the vertical and horizontal directions. The tester disclosed by the utility model has the advantages of concise and reasonable structure, prominent beneficial effects and convenience for application and popularization.
Description
Technical Field
The utility model relates to an energy and conservation of momentum verification test appearance, more specifically the saying so especially relates to an energy and conservation of momentum verification test appearance that accessible measured data verified.
Background
The law of conservation of energy and the law of conservation of momentum are two important laws of conservation in physics of middle school and are the basis for learning mechanics in physics. The correct and thorough understanding of students on the law of conservation of energy and the law of conservation of momentum is the key point for learning relevant knowledge.
However, no effective experimental instrument exists in the teaching process of energy conservation and momentum conservation, students can observe intuitively and vividly, and the authenticity of the students is verified through measured data.
Disclosure of Invention
The utility model discloses an overcome above-mentioned technical problem's shortcoming, provide an energy and momentum conservation proof test appearance that accessible measured data verified.
The utility model discloses an energy and momentum conservation verification test appearance, including the frame that plays fixed and supporting role, fixed and the bracing piece of frame top and hang the initiative ball on the bracing piece, its special character lies in: a passive ball is arranged below the supporting rod; a height indicating plate for indicating the pulled height of the driving ball is arranged on the rack, and a horizontal distance indicating plate for indicating the movement distance of the driving ball and the driven ball is horizontally arranged on one side of the rack; and scales are arranged on the height indicating plate and the horizontal distance indicating plate.
The frame plays a role in fixing and supporting, and the driving ball realizes the conversion from energy to kinetic energy; the passive ball realizes the collision with the active ball in the form of momentum conservation in the horizontal direction. The height indicating plate is used for indicating the rising height of the driving ball, and the horizontal distance indicating plate is used for indicating the moving distance of the driven ball in the horizontal direction. The driving ball follows the law of conservation of energy in the process of moving from a high point to a lowest point; the active ball obeys the law of conservation of momentum in the process of colliding with the passive ball; the passive ball follows the law of conservation of energy again in the process of falling.
The utility model discloses an energy and momentum conservation verification test appearance, but be provided with the lantern ring of free rotation on the bracing piece, the initiative ball is fixed in on the lantern ring through the cycloid. The driving ball is rotationally fixed on the supporting rod through the cycloid and the lantern ring, and free rotation of the driving ball can be achieved.
The utility model discloses an energy and momentum conservation verification test appearance, the distance of the lantern ring distance frame upper surface equals with the distance of frame upper surface distance horizontal distance indicator board upper surface. Under the condition that the vertical reverse movement distances of the active ball and the passive ball are equal, the movement distance of the passive ball in the horizontal direction can be calculated more conveniently.
The utility model has the advantages that: the utility model discloses a setting carries out the initiative ball of cycloid motion to and be used for carrying out the passive ball that the conservation of momentum collided with the initiative ball, through measuring initiative ball, passive ball at vertical, horizontal direction's movement distance, can realize verifying energy conservation law, conservation of momentum law effectively. The utility model discloses a tester has the advantage that the structure is succinct reasonable, beneficial effect is outstanding and the application promotion of being convenient for.
Drawings
FIG. 1 is a schematic structural view of a front view of the tester of the present invention;
fig. 2 is a schematic structural diagram of a top view of the tester of the present invention.
In the figure: the device comprises a machine frame 1, supporting rods 2, a height indicating plate 3, a horizontal distance indicating plate 4, a driving ball 5, a driven ball 6, a cycloid 7 and a lantern ring 8.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, the schematic structural diagrams of the energy and momentum conservation verification tester of the present invention are respectively shown in the front view and the top view, and include a frame 1, a support rod 2, a height indicating plate 3, a horizontal distance indicating plate 4, an active ball 5, a passive ball 6, a cycloid 7 and a lantern ring 8; the shown machine frame 1 plays a role of fixing and supporting, the supporting rod 2 is fixed at the right position of the upper surface of the machine frame 1, and the passive ball 6 is placed right below the supporting rod 2. The lantern ring 8 is arranged at the top end of the support rod 2 and can freely rotate, and the driving ball 5 is fixed with the lantern ring 8 through the cycloid 7; so that the driving ball 5 can freely rotate around the top end of the supporting rod 2 under the action of the lantern ring 8.
The height indicating plate 3 is fixed at a left position of the support bar 2 to indicate a height of a starting position of the driving ball 5 at the time of starting movement. The horizontal distance indicating plate 4 is horizontally arranged at the right side of the frame 1 for indicating the moving distance of the passive ball 6 in the horizontal direction.
In order to measure the height and the distance conveniently, scale values are arranged on the height indicating plate 3, the right side of the rack 1 and the horizontal distance indicating plate 4, so that data can be read.
The motion relationship of the active ball 5 and the passive ball 6 is analyzed below:
the mass of the driving ball 5 and the mass of the driven ball 6 are both m, the vertical height from the starting point of the driving ball to the lowest point is h1, and the vertical height from the horizontal distance of the upper surface of the frame 1 to the indicator board 4 is h 2.
In the process that the driving ball 5 moves from the starting point to the lowest point, energy conservation is met, and the following steps are obtained:
the active ball 5 meets the momentum conservation in the process of colliding with the passive ball 6, and the following results are obtained:
in the process that the active ball 5 and the passive ball 6 fall onto the horizontal distance indicating plate 4, in the horizontal direction, the following requirements are met:
in the vertical direction:
wherein,
、
all the parameters can be measured, and whether the law of conservation of energy and the law of conservation of momentum are correct or not can be verified through the combination of the formulas (1) to (5).
Claims (3)
1. The utility model provides an energy and momentum conservation verification test appearance, including frame (1) that plays fixed and supporting role, fixed and the bracing piece (2) of frame top and hang initiative ball (5) on the bracing piece, its characterized in that: a passive ball (6) is arranged below the supporting rod (2); a height indicating plate (3) used for indicating the pulled height of the driving ball is arranged on the rack, and a horizontal distance indicating plate (4) used for indicating the moving distance of the driving ball and the driven ball is horizontally arranged on one side of the rack; and scales are arranged on the height indicating plate and the horizontal distance indicating plate.
2. The energy and momentum conservation verification tester of claim 1, wherein: the support rod (2) is provided with a lantern ring (8) capable of freely rotating, and the driving ball (5) is fixed on the lantern ring through a cycloid (7).
3. The energy and momentum conservation verification tester of claim 2, wherein: the distance between the lantern ring (8) and the upper surface of the rack (1) is equal to the distance between the upper surface of the rack and the upper surface of the indicating plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310389 CN202632598U (en) | 2012-06-29 | 2012-06-29 | Energy and momentum conservation verification tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310389 CN202632598U (en) | 2012-06-29 | 2012-06-29 | Energy and momentum conservation verification tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202632598U true CN202632598U (en) | 2012-12-26 |
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ID=47385766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220310389 Expired - Fee Related CN202632598U (en) | 2012-06-29 | 2012-06-29 | Energy and momentum conservation verification tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202632598U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280142A (en) * | 2013-06-20 | 2013-09-04 | 西南大学 | Experimental apparatus for exploring and demonstrating momentum theorem |
| CN103531057A (en) * | 2013-11-06 | 2014-01-22 | 魏广栋 | Physical teaching instrument |
| CN107808571A (en) * | 2017-11-24 | 2018-03-16 | 周爱云 | A kind of physics swing dynamics apparatus for demonstrating |
-
2012
- 2012-06-29 CN CN 201220310389 patent/CN202632598U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280142A (en) * | 2013-06-20 | 2013-09-04 | 西南大学 | Experimental apparatus for exploring and demonstrating momentum theorem |
| CN103280142B (en) * | 2013-06-20 | 2015-02-11 | 西南大学 | Experimental apparatus for exploring and demonstrating momentum theorem |
| CN103531057A (en) * | 2013-11-06 | 2014-01-22 | 魏广栋 | Physical teaching instrument |
| CN107808571A (en) * | 2017-11-24 | 2018-03-16 | 周爱云 | A kind of physics swing dynamics apparatus for demonstrating |
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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: 20121226 Termination date: 20130629 |