CN203405987U - Physical demonstration apparatus - Google Patents
Physical demonstration apparatus Download PDFInfo
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- CN203405987U CN203405987U CN201320476480.XU CN201320476480U CN203405987U CN 203405987 U CN203405987 U CN 203405987U CN 201320476480 U CN201320476480 U CN 201320476480U CN 203405987 U CN203405987 U CN 203405987U
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- groove
- mobile
- fixed body
- boss
- accepting groove
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Abstract
A physical demonstration apparatus is provided. A movable body is hinged to one end of a fixed body through a rotating shaft; the movable body is provided with a boss at the center of one surface matching the fixed body; the boss is provided with several blind holes with different sizes; the other surface of the movable body is provided with an accepting groove; a movable support rod is disposed in the accepting groove; the movable support rod is far from the end of the rotating shaft hinged to the end portion of the accepting groove; the fixed body is provided with a groove at the center of one side matching the movable body; the groove matches the boss on the movable body; the bottom surface of the groove is provided with pits with different sizes; balls with the same quality prepared from the same material are disposed in different pits correspondingly; and the fixed body is divided into left and right sides by the groove, the left side is bonded with a rough wood body, and the right side is bonded with a smooth glass body. Physical knowledge including potential energy and frictional force is directly understood through demonstration by a teacher, and learning fun is increased. Manufacture is easy, costs are low, and popularization is convenient.
Description
Technical field
The utility model relates to a kind of teaching aid, is specifically related to a kind of high school physics apparatus for demonstrating.
Background technology
High school physics is one of senior middle school's natural sciences basis subject, is the emphasis subject that student majored in science learns.Senior middle school not only wants learning physics knowledge, the more important thing is the ability that improves learning physics knowledge and applied physics knowledge.Yet the scope of one's knowledge that high school physics relates to is very extensive, and some knowledge be difficult to understand, and for example: the size of body potential energy is relevant with which factor, during object of which movement, friction force size is on its impact etc.Teacher is when this part knowledge of explanation, and most of students are difficult for understanding, and lack learning interest, affect student's achievement.
Summary of the invention
The purpose of this utility model is to provide a kind of physics demonstration device, teacher can be intuitively lively by this apparatus for demonstrating in the process of giving lessons the size of explanation body potential energy relevant with which factor, and the knowledge such as impact of friction force size on it during object of which movement, motivate students' interest in learning.
The purpose of this utility model realizes as follows: this high school physics apparatus for demonstrating, comprise mobile and fixed body, mobile and fixed body one end are hinged by rotating shaft, the one side center of matching with fixed body in mobile is provided with boss, boss is provided with some blind holes that vary in size, the another side of mobile is provided with accepting groove, places movable branching rod in accepting groove, and movable branching rod is hinged away from that end and the accepting groove end of rotating shaft; The one side center that fixed body Shang Yu mobile matches is provided with groove, and groove matches with the boss in mobile, and the bottom surface of groove is provided with some pits that vary in size, the corresponding different ball of material equal in quality of placing in different pits; Groove is divided into left and right two sides by fixed body, and the left side is bonded with coarse wooden body, and the right side is bonded with smooth vitreum; Mobile and fixed body when closure state blind hole and groove position and size corresponding.
Experimental example one: this device in use, first fixed body is placed on the table, mobile opens, with movable branching rod, propping up on the table will be highly fixing, boss in mobile is divided into left and right two sides above by mobile, and in one side therein, the balls that quality is different tumble from the top of mobile respectively, by the distance of observing or actual measurement ball rolls on fixed body, thereby show that the potential energy of object is relevant with the quality of object.
Experimental example two: this device in use, first fixed body is placed on the table, mobile opens, boss in mobile will be divided into left and right two sides above mobile, in one side therein, with same ball, from the top of mobile, tumble, change respectively the height of mobile and desktop, the distance of rolling on fixed body by observing or measure ball, thus show that the height of the potential energy of object and its reference surface of distance of object is relevant.
Experimental example three: this device in use, first fixed body is placed on the table, mobile opens, boss in mobile will be divided into left and right two sides above mobile, with same ball, from top, mobile two sides, tumble respectively, and measure the distance of the rolling of ball on wooden body and vitreum, thereby draw the impact of the size of friction force on object of which movement.
The utility model can be understood the physical knowledge of potential energy, friction force intuitively by teacher's demonstration, has strengthened the enjoyment of Students ' Learning.The utility model is easy to manufacture, with low cost, easy to utilize simultaneously.
Accompanying drawing explanation
Structural representation when Fig. 1 is the utility model zoarium.
Structural representation when Fig. 2 is the utility model split.
Embodiment
As shown in Figure 1 and Figure 2: this physics demonstration device, comprise mobile 1 and fixed body 2, mobile 1 is hinged by rotating shaft 3 with fixed body 2 one end, the one side center of matching with fixed body 2 in mobile 1 is provided with boss 6, boss 6 is provided with some blind holes that vary in size 7, the another side of mobile 1 is provided with accepting groove 5, the interior placement movable branching rod 4 of accepting groove 5, and movable branching rod 4 is hinged away from that end and accepting groove 5 ends of rotating shaft 3; The one side center that fixed body 1 Shang Yu mobile 2 matches is provided with groove 8, and groove 8 matches with the boss 6 in mobile 1, and the bottom surface of groove 8 is provided with some pits that vary in size 9, at the interior corresponding different ball 10 of material equal in quality of placing of different pits 9; Groove 8 is divided into left and right two sides by fixed body 1, and the left side is bonded with coarse wooden body 11, and the right side is bonded with smooth vitreum 12; Mobile 1 and fixed body 2 when closure state blind hole 7 and pit 9 positions and size corresponding.
Claims (1)
1. a physics demonstration device, comprise mobile and fixed body, it is characterized in that: mobile (1) is hinged by rotating shaft (3) with fixed body (2) one end, the upper one side center of matching with fixed body (2) of mobile (1) is provided with boss (6), boss (6) is provided with some blind holes that vary in size (7), the another side of mobile (1) is provided with accepting groove (5), in accepting groove (5), place movable branching rod (4), movable branching rod (4) is hinged away from that end and accepting groove (5) end of rotating shaft (3); The one side center that fixed body (1) Shang Yu mobile (2) matches is provided with groove (8), groove (8) matches with the boss (6) in mobile (1), the bottom surface of groove (8) is provided with some pits that vary in size (9), the corresponding different ball (10) of material equal in quality of placing in different pits (9); Groove (8) is divided into left and right two sides by fixed body (1), and the left side is bonded with coarse wooden body (11), and the right side is bonded with smooth vitreum (12); Mobile (1) and fixed body (2) blind hole (7) when closure state is corresponding with pit (9) position and size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320476480.XU CN203405987U (en) | 2013-08-06 | 2013-08-06 | Physical demonstration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320476480.XU CN203405987U (en) | 2013-08-06 | 2013-08-06 | Physical demonstration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405987U true CN203405987U (en) | 2014-01-22 |
Family
ID=49941911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320476480.XU Expired - Fee Related CN203405987U (en) | 2013-08-06 | 2013-08-06 | Physical demonstration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203405987U (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 |
| 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 |
-
2013
- 2013-08-06 CN CN201320476480.XU patent/CN203405987U/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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20140806 |
|
| EXPY | Termination of patent right or utility model |