CN202339660U - Newton first law physics teaching demonstrating instrument - Google Patents
Newton first law physics teaching demonstrating instrument Download PDFInfo
- Publication number
- CN202339660U CN202339660U CN2011205246226U CN201120524622U CN202339660U CN 202339660 U CN202339660 U CN 202339660U CN 2011205246226 U CN2011205246226 U CN 2011205246226U CN 201120524622 U CN201120524622 U CN 201120524622U CN 202339660 U CN202339660 U CN 202339660U
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- CN
- China
- Prior art keywords
- steel ball
- slipway
- slideway
- newton
- base
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- Expired - Fee Related
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Abstract
The utility model provides a Newton first law physics teaching demonstrating instrument, which comprises a base, a first slipway, a second slipway, a first steel ball, a second steel ball and a reflecting mirror, wherein the first slipway and the second slipway are fixed in parallel on the base respectively; the first slipway is formed by connecting a first inclined surface with a smooth slide rail; the second slipway is formed by connecting a second inclined surface with a rough track; the reflecting mirror is arranged on one side of the base; the other side of the base is provided with graduation marks; the first steel ball rolls on the first slipway; the second steel ball rolls on the second slipway; the size and the mass of the first slide ball are the same as those of the second steel ball; and the height of the first inclined surface is the same as that of the second inclined surface. The Newton first law physics teaching demonstrating instrument has the advantages of simple structure, and capabilities of directly measuring experiment data and reinforcing the comprehension of students on the Newton first law; and the instrument can be used for demonstrating that an object moving on a horizontal plane is smaller, the moving distance is longer when the initial velocity of the object is the same.
Description
Technical field
The utility model relates to a kind of physics teaching apparatus, is specifically related to a kind of first Newton's law physics teaching demonstrator.
Background technology
Newton's first law of motion; Claim the law of inertia again, it has scientifically illustrated power and these two physical concepts of inertia, has correctly explained the relation of power and motion state; And proposed all objects and all have and keep the constant attribute-inertia of its motion state, it is philosophy in the physics.Have only a track and a steel ball in the existing teaching aid, do not have scale mark yet, can not write down experimental data, it is not thorough that students is understood.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned shortcoming, and a kind of first Newton's law physics teaching demonstrator of simple in structure, good demonstration effect is provided.
The technology that the utility model adopts is as follows: the first Newton's law physics teaching demonstrator, comprise base, first slideway, second slideway, first steel ball, second steel ball and catoptron, and first slideway and second slideway are distinguished secured in parallel on base; First slideway is connected to form by first inclined-plane and smooth track; Second slideway is connected to form by second inclined-plane and coarse track, and a side of base is equipped with catoptron, and an other side of base is carved with scale mark; First steel ball rolls on first slideway; Second steel ball rolls on second slideway, and first steel ball is all identical with size, the quality of second steel ball, and the height on first inclined-plane is identical with the height on second inclined-plane.
The utlity model has simple in structurely, direct experiments of measuring data are deepened the advantage of student to the understanding of Newton first law, and the utility model can be demonstrated when object initial velocity is identical, and the resistance that receives at the object of horizontal plane motion is more little, and move distance is long more.
Description of drawings
Fig. 1 is the structural representation of the utility model.Wherein 1, base, 2, catoptron, 3, second steel ball, 4, first steel ball, 5, second inclined-plane, 6, coarse track, 7, first inclined-plane, 8, smooth track, 9, scale mark.
Embodiment
Further specify according to accompanying drawing: the first Newton's law physics teaching demonstrator, comprise base, first slideway, second slideway, first steel ball, second steel ball and catoptron, first slideway and second slideway difference secured in parallel are on base; First slideway is connected to form by first inclined-plane and smooth track; Second slideway is connected to form by second inclined-plane and coarse track, and a side of base is equipped with catoptron, and an other side of base is carved with scale mark; First steel ball rolls on first slideway; Second steel ball rolls on second slideway, and first steel ball is all identical with size, the quality of second steel ball, and the height on first inclined-plane is identical with the height on second inclined-plane.
During demonstration two steel balls are put down on the summit of separately slideway respectively simultaneously, write down the distance of the slip of each steel ball, can draw when object initial velocity is identical, the resistance that receives at the object of horizontal plane motion is more little, and move distance is long more.
Claims (1)
1. the first Newton's law physics teaching demonstrator comprises base, first slideway, second slideway, first steel ball, second steel ball and catoptron, it is characterized in that: first slideway and second slideway difference secured in parallel are on base; First slideway is connected to form by first inclined-plane and smooth track; Second slideway is connected to form by second inclined-plane and coarse track, and a side of base is equipped with catoptron, and an other side of base is carved with scale mark; First steel ball rolls on first slideway; Second steel ball rolls on second slideway, and first steel ball is all identical with size, the quality of second steel ball, and the height on first inclined-plane is identical with the height on second inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205246226U CN202339660U (en) | 2011-12-15 | 2011-12-15 | Newton first law physics teaching demonstrating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205246226U CN202339660U (en) | 2011-12-15 | 2011-12-15 | Newton first law physics teaching demonstrating instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339660U true CN202339660U (en) | 2012-07-18 |
Family
ID=46488350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205246226U Expired - Fee Related CN202339660U (en) | 2011-12-15 | 2011-12-15 | Newton first law physics teaching demonstrating instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751705A (en) * | 2015-03-23 | 2015-07-01 | 姚爱民 | Newton first law demonstrating instrument |
-
2011
- 2011-12-15 CN CN2011205246226U patent/CN202339660U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751705A (en) * | 2015-03-23 | 2015-07-01 | 姚爱民 | Newton first law demonstrating instrument |
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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: 20120718 Termination date: 20131215 |