CN104143277A - Friction force experimental teaching aid - Google Patents
Friction force experimental teaching aid Download PDFInfo
- Publication number
- CN104143277A CN104143277A CN201410414245.9A CN201410414245A CN104143277A CN 104143277 A CN104143277 A CN 104143277A CN 201410414245 A CN201410414245 A CN 201410414245A CN 104143277 A CN104143277 A CN 104143277A
- Authority
- CN
- China
- Prior art keywords
- friction force
- teaching aid
- upper cover
- different
- experimental teaching
- 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.)
- Pending
Links
Abstract
The invention provides a friction force experimental teaching aid. The friction force experimental teaching aid is characterized by comprising a box, an upper cover and a small ball, the upper cover is connected with the box, the upper cover and the box are respectively provided with two or more corresponding grooves, and the grooves in the box are different in surface roughness. The friction force experimental teaching aid is simple in structure and convenient to use, and it is conveniently and visually demonstrated that as objects bear different friction forces at the surfaces with different roughnesses, sliding distances are different.
Description
Technical field
The present invention relates to teaching appliance field, be specifically related to a kind of friction force experiment teaching aid.
Background technology
Junior physics class is when saying friction force, can talk about object and be subject to friction force difference on different roughness surface, present experiment is all to draw a dolly at different roughness apparent motion with a spring balance, from the number of degrees of spring balance, find out friction force difference, but due to people when pulling dolly hand firmly inhomogeneous, often cause dolly one fast one slow, thus little when large during the number of degrees, affected experiment effect.
Summary of the invention
The present invention is subject to for solving object the test problem that friction force is different on different roughness surface, proposed a kind of experiment teaching aid.
The technical solution used in the present invention is: a kind of friction force experiment teaching aid, its feature with comprise casing, upper cover and bead, described upper cover is connected with casing, upper cover and casing all have two above corresponding grooves, the rooved face roughness on casing is different.
Beneficial effect of the present invention is: the present invention is simple in structure easy to use, and conveniently having demonstrated intuitively object is subject to friction force difference on different roughness surface, thereby sliding distance is different.
Accompanying drawing explanation
Fig. 1 structural drawing of the present invention.
Reference numeral: 1-casing, 2-upper cover, 3-bead, 4-groove.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.A friction force experiment teaching aid as shown in Figure 1, its feature with comprise casing 1, upper cover 2 and bead 3, described upper cover 2 is connected with casing 1, upper cover 2 and casing 1 all have two above corresponding grooves 4, groove 4 surfacenesses on casing 1 are different.
Below be only specific embodiments more of the present invention; above-mentioned concrete structure can not be interpreted as it is limitation of the present invention; in fact, specific embodiments of the invention have a variety of, within every insubstantial modifications of in the present invention conceives, it being made all falls into protection scope of the present invention.
Claims (1)
1. a friction force experiment teaching aid, its feature with comprise casing, upper cover and bead, described upper cover is connected with casing, upper cover and casing all have two above corresponding grooves, the rooved face roughness on described casing is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410414245.9A CN104143277A (en) | 2014-08-21 | 2014-08-21 | Friction force experimental teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410414245.9A CN104143277A (en) | 2014-08-21 | 2014-08-21 | Friction force experimental teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104143277A true CN104143277A (en) | 2014-11-12 |
Family
ID=51852442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410414245.9A Pending CN104143277A (en) | 2014-08-21 | 2014-08-21 | Friction force experimental teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104143277A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751705A (en) * | 2015-03-23 | 2015-07-01 | 姚爱民 | Newton first law demonstrating instrument |
| CN106327965A (en) * | 2016-11-08 | 2017-01-11 | 赵冲 | Multifunctional physical experiment instrument |
| CN108766140A (en) * | 2018-08-08 | 2018-11-06 | 钟文信 | A kind of portable physical friction experiment device |
| CN108961951A (en) * | 2018-06-26 | 2018-12-07 | 瑙ｆ尝 | A kind of frictional force Physical Experiment demonstration teaching aid |
| CN109192013A (en) * | 2018-09-18 | 2019-01-11 | 嘉善县里泽中心学校 | A kind of friction force demonstration teaching aid |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154516Y (en) * | 1992-11-27 | 1994-01-26 | 熊知会 | Demonstrater of newtonian no.1 law |
| GB2318675A (en) * | 1996-10-07 | 1998-04-29 | David Eckold | Simple machines kit |
| CN202258041U (en) * | 2011-10-13 | 2012-05-30 | 王玉 | Newton first law demonstrator |
| CN103473973A (en) * | 2013-10-08 | 2013-12-25 | 熊德永 | Sliding friction force demonstration device |
| CN203405987U (en) * | 2013-08-06 | 2014-01-22 | 刘宗涛 | Physical demonstration apparatus |
-
2014
- 2014-08-21 CN CN201410414245.9A patent/CN104143277A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154516Y (en) * | 1992-11-27 | 1994-01-26 | 熊知会 | Demonstrater of newtonian no.1 law |
| GB2318675A (en) * | 1996-10-07 | 1998-04-29 | David Eckold | Simple machines kit |
| CN202258041U (en) * | 2011-10-13 | 2012-05-30 | 王玉 | Newton first law demonstrator |
| CN203405987U (en) * | 2013-08-06 | 2014-01-22 | 刘宗涛 | Physical demonstration apparatus |
| CN103473973A (en) * | 2013-10-08 | 2013-12-25 | 熊德永 | Sliding friction force demonstration device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751705A (en) * | 2015-03-23 | 2015-07-01 | 姚爱民 | Newton first law demonstrating instrument |
| CN106327965A (en) * | 2016-11-08 | 2017-01-11 | 赵冲 | Multifunctional physical experiment instrument |
| CN108961951A (en) * | 2018-06-26 | 2018-12-07 | 瑙ｆ尝 | A kind of frictional force Physical Experiment demonstration teaching aid |
| CN108766140A (en) * | 2018-08-08 | 2018-11-06 | 钟文信 | A kind of portable physical friction experiment device |
| CN109192013A (en) * | 2018-09-18 | 2019-01-11 | 嘉善县里泽中心学校 | A kind of friction force demonstration teaching aid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104143277A (en) | Friction force experimental teaching aid | |
| AU354544S (en) | Case for a smart phone | |
| WO2015009412A3 (en) | Structural member with pultrusions | |
| WO2016020631A3 (en) | Ground anchor | |
| CN104143276A (en) | Teaching aid for impact experiment | |
| WO2014107705A3 (en) | Support assembly | |
| WO2015160685A3 (en) | Cord storage device | |
| CN104440820A (en) | Electromagnet type workbench | |
| CN103835484B (en) | Magnet-type skirting | |
| WO2015024237A8 (en) | Improved daily task tools that interface with backend systems | |
| CN104209940A (en) | Hardware fitting placing shelf | |
| CN204130017U (en) | A kind of striking experiment teaching aid | |
| CN204130014U (en) | A kind of stressed change direction of motion experiment teaching aid | |
| CN204291677U (en) | Use for electronic equipment Sliding Structures | |
| CN104455150A (en) | Buffer base | |
| USD775936S1 (en) | Cable management station | |
| CN203941638U (en) | A kind of teaching inclined-plane | |
| CN104143275A (en) | Experiment teaching aid for motion direction changing under stress | |
| CN204288052U (en) | A kind of counter shell | |
| CN105212900A (en) | Drawer type rehabilitation step | |
| CN203977800U (en) | Outdoor flooring metal button member | |
| Granshaw | Finch Tweets A Brave New Dawn. | |
| CN202721308U (en) | Socket panel with sound equipment | |
| AU2017901312A0 (en) | The Watson Performance Model: Linking Business Performance To Business Value | |
| WO2014118304A3 (en) | A support member for cooking devices and the cooking device wherein the same is used |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |