CN202258041U - Newton first law demonstrator - Google Patents
Newton first law demonstrator Download PDFInfo
- Publication number
- CN202258041U CN202258041U CN2011203893170U CN201120389317U CN202258041U CN 202258041 U CN202258041 U CN 202258041U CN 2011203893170 U CN2011203893170 U CN 2011203893170U CN 201120389317 U CN201120389317 U CN 201120389317U CN 202258041 U CN202258041 U CN 202258041U
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- CN
- China
- Prior art keywords
- newton
- rail
- base
- guide rail
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a Newton first law demonstrator. The Newton first law demonstrator is characterized in that: a rail is arranged in the middle of the upper part of a base; a plane mirror is supported on one side of the rail through a support frame; a scale ruler is arranged on the other side of the rail; an inclined board is arranged at one end of a guide rail through a support rod; a rolling ball is arranged at the upper end of an opening of the inclined board; and four corners at the bottom of the base are provided with an adjusting bolt respectively. By the Newton first law demonstrator, after rolling down from the inclined board to the guide rail, the rolling ball moves forwards along the rail, so that students can observe the movement of the rolling ball through the plane mirror and can observe the moving distance of the rolling ball through the scale ruler directly.
Description
Technical field
The utility model relates to a kind of teaching aid, is a kind of Newton first law demonstration device that in physical teaching course, uses specifically.
Background technology
In physical teaching course; The demonstration teaching aid of previously used Newton first law experiment, spin are directly to roll at plank after tumbling from the inclined-plane, are rolled into the outside of plank easily; Experiment teaching aid is placed on the lectern; The student is difficult for observing the motion conditions of spin, does not have scale on the base, is inconvenient to measure the distance of petahque.
Summary of the invention
The purpose of the utility model provides a kind of spin and moves in orbit, is difficult for being rolled into the outside of plank, increases level crossing and is convenient to observation of students, but increase rule on the base, is convenient to directly measure the Newton first law demonstration device of petahque distance.
To achieve these goals; The utility model is provided with track in the middle part, top of base, is supported with level crossing in a side of track through carriage, is provided with rule in a side of track; Hang plate is located at an end of guide rail through support bar; The opening of said hang plate is corresponding with guide rail, and spin is located at the open upper end of hang plate, is respectively equipped with the adjusting bolt for four jiaos in the bottom of base.
Through above setting, the spin of the utility model is tumbled from hang plate, be rolled on the guide rail after; Spin travels forward along track; Can not be rolled into the outside of base, regulate the height of hang plate, can adjust the distance size of petahque; The student can observe petahque through level crossing, directly observes the distance of petahque from rule.
Description of drawings
Combine accompanying drawing that the utility model is further specified at present.
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, base, 2, track, 3, carriage, 4, level crossing, 5, rule, 6, hang plate, 7, support bar, 8, spin, 9, regulate bolt.
Embodiment
As shown in Figure 1, the utility model is provided with track 2 in the middle part, top of base 1; Side at track 2 is supported with level crossing 4 through carriage 3; Side at track 2 is provided with rule 5, and hang plate 6 is located at an end of guide rail 2 through support bar 7, and the opening of said hang plate 6 is corresponding with guide rail 2; Spin 8 is located at the open upper end of hang plate 6, is respectively equipped with for four jiaos in the bottom of base 1 and regulates bolt 9.Through above device, the spin 8 of the utility model is tumbled from hang plate 6, be rolled on the guide rail 2 after; Move forward along track 2; Can not be rolled into the outside of base 1, the height of adjustment hang plate 6, the distance that can adjust spin 8 motions is big or small; The student can observe spin 8 motions through level crossing 4, directly observes the distance of spin 8 motions from rule 5.On track 2, spread the different cotton of degree of roughness, velveteen cloth, towelling etc.; Spin 8 is rolled at the different cotton of degree of roughness, velveteen cloth, towelling; The frictional resistance that receives is different, thereby motion is more little apart from the differentiated friction resistance, and the distance of motion is just far away more.
Claims (1)
1. Newton first law demonstration device; It is characterized in that: the middle part, top at base is provided with track, is supported with level crossing in a side of track through carriage, is provided with rule in a side of track; Hang plate is located at an end of guide rail through support bar; The opening of said hang plate is corresponding with guide rail, and spin is located at the open upper end of hang plate, is respectively equipped with the adjusting bolt for four jiaos in the bottom of base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203893170U CN202258041U (en) | 2011-10-13 | 2011-10-13 | Newton first law demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203893170U CN202258041U (en) | 2011-10-13 | 2011-10-13 | Newton first law demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258041U true CN202258041U (en) | 2012-05-30 |
Family
ID=46119251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203893170U Expired - Fee Related CN202258041U (en) | 2011-10-13 | 2011-10-13 | Newton first law demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143277A (en) * | 2014-08-21 | 2014-11-12 | 韩智 | Friction force experimental teaching aid |
| CN104575189A (en) * | 2015-02-06 | 2015-04-29 | 唐山学院 | Track device for verifying kinematic formula |
-
2011
- 2011-10-13 CN CN2011203893170U patent/CN202258041U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143277A (en) * | 2014-08-21 | 2014-11-12 | 韩智 | Friction force experimental teaching aid |
| CN104575189A (en) * | 2015-02-06 | 2015-04-29 | 唐山学院 | Track device for verifying kinematic formula |
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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: 20120530 Termination date: 20121013 |