CN206411960U - Forst law of motion apparatus for demonstrating - Google Patents
Forst law of motion apparatus for demonstrating Download PDFInfo
- Publication number
- CN206411960U CN206411960U CN201620494922.7U CN201620494922U CN206411960U CN 206411960 U CN206411960 U CN 206411960U CN 201620494922 U CN201620494922 U CN 201620494922U CN 206411960 U CN206411960 U CN 206411960U
- Authority
- CN
- China
- Prior art keywords
- horizontal slide
- demonstrating
- presentation layers
- slide portion
- plane slideway
- 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 provides a kind of forst law of motion apparatus for demonstrating, it includes demonstrating jack horse and iron ball, the demonstrating jack horse includes the support frame being made up of bottom plate and two support columns, the support column is plugged with some presentation layers successively from bottom to top, the presentation layer includes inclined-plane slideway portion and horizontal slide portion, and the inclined-plane slideway portion and the horizontal slide portion connect；The angle of inclination in the inclined-plane slideway portion of different presentation layers is identical；Suitable chute of the iron ball along straight-line rolling is offered in the inclined-plane slideway portion and the horizontal slide portion, the chute coefficient of friction in the horizontal slide portion of different presentation layers is different；Electromagnet is provided with the chute at the high-end place in the inclined-plane slideway portion of different presentation layers, the electromagnet is arranged on the switch connection power supply on bottom plate by one.The utility model has the advantages that design science and easy to use, by the apparatus for demonstrating, can clearly show the forst law of motion, has good application prospect in physics teaching field.
Description
Technical field
The utility model is related to a kind of forst law of motion apparatus for demonstrating.
Background technology
The forst law of motion is important study content in Physics Course, and teacher is in order to allow student to understand that newton first determines
Rule, it is often necessary to carry out pilot demonstration.And there is no the special forst law of motion demonstrator when imparting knowledge to students now, progress of gathering materials on the spot
Simple demonstration.The experiment being typically designed is：1, allow dolly to be slided from beveled top end, slide into and be covered with the horizontal plane of cardboard, see
Examining the distance of dolly advance has what to change；3, allow dolly to be slided from beveled top end, plane is more smooth, the frictional resistance that dolly is subject to
Smaller, it is more remote that dolly advances, and under ideal conditions, if horizontal plane is definitely smooth, the resistance that object is subject to is zero, its speed
Degree will not slow down, and object will move forever with invariable speed, and then show that the forst law of motion is tested.And show
There is forst law of motion demonstrator to be primarily present following shortcoming：1 above-mentioned experiment will be done three times, and towel, cardboard are changed in plane
Test respectively, the distance of moving of car distance is recorded respectively, is not only lost time, and efficiency of teaching is low；2nd, can not be simultaneously
Dolly is discharged, causes demonstration to have deviation, quality of instruction is influenceed；3rd, the easy sideslip of dolly, wheel is close to, and influences the standard of experimental data
True property.
In order to solve the problem of above is present, people are seeking a kind of preferable technical solution always.
The content of the invention
The purpose of this utility model is in view of the shortcomings of the prior art, so as to provide a kind of design science and easy to use
Forst law of motion apparatus for demonstrating.
To achieve these goals, the technical scheme that the utility model is used is：A kind of forst law of motion demonstration dress
Put, it includes demonstrating jack horse and iron ball, the demonstrating jack horse includes the support frame being made up of bottom plate and two support columns, the branch
Dagger is plugged with some presentation layers successively from bottom to top, and the presentation layer includes inclined-plane slideway portion and horizontal slide portion, described oblique
Face slideway portion and the horizontal slide portion connect；The angle of inclination in the inclined-plane slideway portion of different presentation layers is identical；Slide on the inclined-plane
Suitable chute of the iron ball along straight-line rolling, the horizontal slide of different presentation layers are offered in road portion and the horizontal slide portion
The chute coefficient of friction in portion is different；Electromagnet is provided with the chute at the high-end place in the inclined-plane slideway portion of different presentation layers, institute
State the switch connection power supply that electromagnet is arranged on by one on bottom plate.
Based on above-mentioned, support frame as described above and some presentation layers are equidistantly plugged with successively from bottom to top.
Based on above-mentioned, two support columns are plugged on the bottom plate.
Based on above-mentioned, electromagnet standing groove, institute are offered in the chute at the high-end place in the inclined-plane slideway portion of different presentation layers
Electromagnet is stated to be plugged in the electromagnet standing groove.
The utility model has substantive distinguishing features and progress compared with the prior art, specifically, and the utility model, which has, to be set
Meter science and advantage easy to use, by the apparatus for demonstrating, can clearly show the forst law of motion, in physics teaching neck
There is good application prospect in domain.
Brief description of the drawings
Fig. 1 is positive structure schematic of the present utility model.
Fig. 2 is the overlooking the structure diagram of presentation layer of the present utility model.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1-2, a kind of forst law of motion apparatus for demonstrating, it includes demonstrating jack horse and iron ball 2, the Demonstration table
Frame includes the support frame being made up of bottom plate 11 and two support columns 12, and for convenient disassembly, two support columns 12 are plugged on
On the bottom plate 11, the support column 12 is equidistantly plugged with some presentation layers 3 successively from bottom to top, and the presentation layer includes inclined-plane
Slideway portion 31 and horizontal slide portion 32, the inclined-plane slideway portion 31 and the horizontal slide portion 32 connect；Different presentation layers it is oblique
The angle of inclination in face slideway portion 31 is identical, and the horizontal slide portion 32 of different presentation layers is provided with graduation mark；The inclined-plane slideway portion
31 and the horizontal slide portion 32 on offer suitable chute of the iron ball 2 along straight-line rolling, the level of different presentation layers is slided
The coefficient of friction of the chute in road portion 32 is different；Electromagnetism is offered in the chute at the high-end place in the inclined-plane slideway portion 31 of different presentation layers
Electromagnet is inserted with iron standing groove, the electromagnet standing groove, the switch that the electromagnet is arranged on by one on bottom plate connects
Energization source.
Application method：
When being demonstrated, demonstrating jack horse first is assembled with bottom plate and two support columns, different presentation layers are plugged on support
On post, then electromagnet is plugged in electromagnet standing groove, the electromagnet connected in electromagnet, opening switch connection presentation layer
Power supply, by iron ball absorption on electromagnet.When switching switch, power supply disconnects, electromagnet power-off demagnetization, the iron of different presentation layers
Ball is snapped down to the horizontal slide portion of different coefficients of friction from same starting point respectively, by graduation mark it can be seen that the slip of iron ball away from
From can clearly show the forst law of motion.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Still embodiment of the present utility model can be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (1)
1. a kind of forst law of motion apparatus for demonstrating, it is characterised in that：It includes demonstrating jack horse and iron ball, the demonstrating jack horse bag
The support frame being made up of bottom plate and two support columns is included, two support columns are plugged on the bottom plate, the support column is certainly
Some presentation layers are equidistantly plugged with down successively, the presentation layer includes inclined-plane slideway portion and horizontal slide portion, the inclined-plane
Slideway portion and the horizontal slide portion connect, and the horizontal slide portion of different presentation layers is provided with graduation mark；Different presentation layers it is oblique
The angle of inclination in face slideway portion is identical；The suitable iron ball is offered in the inclined-plane slideway portion and the horizontal slide portion along directly
The chute that line is rolled, the chute coefficient of friction in the horizontal slide portion of different presentation layers is different；The inclined-plane slideway portion of different presentation layers
High-end place chute in offer electromagnet standing groove, the electromagnet is plugged in the electromagnet standing groove, the electricity
Magnet is arranged on the switch connection power supply on bottom plate by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620494922.7U CN206411960U (en) | 2016-05-27 | 2016-05-27 | Forst law of motion apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620494922.7U CN206411960U (en) | 2016-05-27 | 2016-05-27 | Forst law of motion apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206411960U true CN206411960U (en) | 2017-08-15 |
Family
ID=59547644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620494922.7U Expired - Fee Related CN206411960U (en) | 2016-05-27 | 2016-05-27 | Forst law of motion apparatus for demonstrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206411960U (en) |
-
2016
- 2016-05-27 CN CN201620494922.7U patent/CN206411960U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20180527 |