CN201017501Y - Friction table for physical experiment - Google Patents
Friction table for physical experiment Download PDFInfo
- Publication number
- CN201017501Y CN201017501Y CNU2007200111739U CN200720011173U CN201017501Y CN 201017501 Y CN201017501 Y CN 201017501Y CN U2007200111739 U CNU2007200111739 U CN U2007200111739U CN 200720011173 U CN200720011173 U CN 200720011173U CN 201017501 Y CN201017501 Y CN 201017501Y
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- China
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- support
- supporting frame
- experiment
- pointer
- utility
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Abstract
The utility model relates to a friction assembly for a physical experiment, which comprises a wooden seating, a supporting frame, a guide finger and an indexing plate. The supporting frame is spliced on the upper top face of the wooden seating, the guide finger is arranged on the upper part of the supporting frame, the indexing plate is arranged on the supporting frame at the needlepoint of the guide finger, and a plurality of counter poise grooves are arranged on the upper top face of the wooden seating at the bottom of the supporting frame. A supporting frame jack and a plurality of the counter poise grooves are arranged on the one side of the wooden seating. The utility model has the advantages that the concept is novel, the structure is simple, the cost is low, the fabrication is simple, the operation is convenient, and the comprehension is deepen through the quantitative experiment when studying and understanding the relation between the frictional force and the roughness of the contact surface, and the relation between the frictional force and the contact area. The utility model is clear and direct during the process of the teaching experiment and suitable for the application of the physics course teaching of middle school students.
Description
Technical field
The utility model relates to a kind of physics lesson teaching aid, concrete is a kind of Physical Experiment rubbing device.
Background technology
In the physics lesson of middle school the explanation friction force chapters and sections the time, teacher often allows the student fully understand that the size of friction force is relevant with which factor by experiment, and various states that write down in the experimentation and phenomenon are all with visual inspection and judgement, this superficial experiment says also be not perfunctory from birth for the middle school, and the student who begins to learn friction force has this point perceptual knowledge for progressively sharpening understanding and the effect of understanding the rest by analogy is played by indoctrination session.Yet along with the daily understandability of science and technology development student day by day improves, in study, they be not content with superficial, qualitatively, only depend on visual inspection and the phenomenon and the data of reckoning and, if by concrete experiment, obtain relatively accurate and quantitative data, it is relevant with which factor to help the sharpen understanding size of friction force of middle school student.But still there is not to draw at present the frictional experiment device of data.
Summary of the invention
The purpose of this utility model is the coarse of experimentation when solving present study friction force chapters and sections and only relies on the inaccurate problem of visual inspection and a kind of Physical Experiment rubbing device of providing tangible pointer to show.
The technical scheme that adopts:
A kind of Physical Experiment rubbing device; Comprise wood seat, support, pointer, index plate, the last end face of the described wood seat support of pegging graft, a pointer is installed on support top, the tail end of pointer and support flexible connection, be equiped with index plate near on the support at pointer needle point place, the wood seat of frame bottom is provided with a plurality of counterweight grooves.
A side of above-mentioned wood seat is provided with support jack and a plurality of counterweight groove.
The utility model is skillfully constructed, simple in structure, materials are few, cost is low, making is easy, easy to use, when understanding the concerning of friction force and surface of contact roughness, the wood seat is kept flat on the back up pad, dragging the wood seat through tautness meter travels forward, change the following back up pad of wood seat after writing down the numerical value on the tautness meter, drag the wood seat through tautness meter again and travel forward, write down the numerical value on the tautness meter again.When understanding the concerning of friction force and contact area the wood seat is sidelong on back up pad, it was now to have shifted one's position to the top support jack in the side originally that support is extracted insertion from position of going up end face, repeated above-mentioned experiment again.
Clear during the utility model education experiment, directly perceived, suitable middle school student's physics lesson teaching is used.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment
A kind of Physical Experiment rubbing device; Comprise wood seat 1, support 2, pointer 3, index plate 4, grafting one support 2 on end face 8 on the wood seat 1, install a pointer 3 on the top of support 2, the tail end of pointer 3 and support 2 flexibly connect, installing one division dish 4 near the support 2 at the needle point place of pointer 3, end face 8 is provided with a plurality of counterweight grooves 5 on the wood seat 1 of the bottom of support 2.
A side 9 of wood seat is provided with support jack 7 and a plurality of counterweight groove 5.The another side 10 of wood seat 1 is provided with hook 6.
Claims (2)
1. a Physical Experiment rubbing device comprises wood seat (1), support (2), pointer (3), index plate (4), it is characterized in that:
The last end face (8) of described wood seat (1) is gone up the support (2) of pegging graft, install a pointer (3) on the top of support (2), the tail end of pointer (3) and support (2) flexibly connect, going up installing one division dish (4) near the support (2) at pointer needle point place, the last end face (8) of the wood seat (1) of the bottom of support (2) is provided with a plurality of counterweight grooves (5).
2. a kind of Physical Experiment rubbing device according to claim 1 is characterized in that: a side (9) of above-mentioned wood seat (1) is provided with support jack (7) and a plurality of counterweight groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200111739U CN201017501Y (en) | 2007-03-19 | 2007-03-19 | Friction table for physical experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200111739U CN201017501Y (en) | 2007-03-19 | 2007-03-19 | Friction table for physical experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017501Y true CN201017501Y (en) | 2008-02-06 |
Family
ID=39058000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200111739U Expired - Fee Related CN201017501Y (en) | 2007-03-19 | 2007-03-19 | Friction table for physical experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017501Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778879A (en) * | 2015-04-17 | 2015-07-15 | 韦树伟 | Physical teaching aid |
-
2007
- 2007-03-19 CN CNU2007200111739U patent/CN201017501Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778879A (en) * | 2015-04-17 | 2015-07-15 | 韦树伟 | Physical teaching aid |
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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: 20080206 |