CN201607852U - Demonstrator of uniform linear motion of object - Google Patents
Demonstrator of uniform linear motion of object Download PDFInfo
- Publication number
- CN201607852U CN201607852U CN2010201179849U CN201020117984U CN201607852U CN 201607852 U CN201607852 U CN 201607852U CN 2010201179849 U CN2010201179849 U CN 2010201179849U CN 201020117984 U CN201020117984 U CN 201020117984U CN 201607852 U CN201607852 U CN 201607852U
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Abstract
The utility model discloses a demonstrator of uniform linear motion of an object, which comprises a rubber plug, a slender glass tube, an iron ball and a permanent magnet; and the rubber plug seals the cavity of the slender glass tube, the cavity is filled with liquid with the viscosity coefficient being 0.1-0.8PaS, the iron ball is arranged in the slender glass tube and can move freely, and the permanent magnet is arranged at the outer end of the slender glass tube. The experimental device has the advantages of simple and delicate structure, convenient and rapid operation and high success rate. The ball in the liquid is magnified by refraction of the glass tube filled with the liquid with clear and bright effect and high visibility. Therefore, the utility model is very suitable for teaching demonstration experiment.
Description
Technical field
The utility model relates to a kind of physics facility, relates in particular to a kind of object uniform linear movement demonstration device that is used to demonstrate the object linear uniform motion.
Background technology
Linear uniform motion is the simplest mechanical motion of object, and in physics teaching in secondary school, it is the basis of study object mechanical motion.Require the student deeply to understand, observe and grasp its motion feature, just can learn follow-up course well this notion.So in teaching, often be to cooperate by lecture experiment to lecture, with the teaching efficiency that obtains.
The principle of existing object uniform linear movement demonstration device is whether the distance of passing through in the equal time of research equates.The timing of general employing metronome is found out the position of moving object when the beat sounding, and then is drawn the feature of linear uniform motion, and this process must be controlled the movement velocity of object.
The current experiments method has two kinds: the one, with skewed slot guide rail and bead demonstration, need to consider balance friction force and air resistance; Other method is with front end the flat board of pulley and dolly demonstration to be arranged, and the more difficult control of movement velocity is so when doing experiment, all will repeatedly adjust according to the different location environment, repeatedly experiment strives for success, and wastes time and energy the influence teaching at every turn.
Summary of the invention
The purpose of this utility model provides a kind of object uniform linear movement demonstration device, so that the linear uniform motion of demonstration object need not adjustment, success ratio height.
The purpose of this utility model is achieved through the following technical solutions:
A kind of object uniform linear movement demonstration device comprises: plug, slender glass tube, irony bead, permanent magnet; Plug sealing slender glass tube cavity, inner chamber is full of the liquid of viscosity coefficient between 0.1-0.8PaS, but the irony bead is located at free movement in the slender glass tube, and permanent magnet is located at the slender glass tube outer end.
Described liquid is machine oil, castor oil or salad oil.
Described slender glass tube wall is provided with scale.
The technical scheme that provides by above-mentioned the utility model as can be seen, the object uniform linear movement demonstration device that the utility model embodiment provides, experimental provision are simply exquisite, convenient to operation, the success ratio height.Bead in the liquid is equipped with the glass tube refractive power amplification of liquid, and is clear bright, and the visibility height is so be particularly suitable for the teaching demonstration experiment.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation of the object uniform linear movement demonstration device that Fig. 1 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that is obtained under the creative work prerequisite.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
As shown in Figure 1, a kind of object uniform linear movement demonstration device, plug 3, slender glass tube 1, irony bead, permanent magnet 4; Plug 3 sealing slender glass tubes 1 inner chamber, inner chamber is full of the liquid of viscosity coefficient between 0.1-0.8PaS, but irony bead 2 is located at free movement in the slender glass tube, and permanent magnet 4 is located at the slender glass tube outer end.
Liquid in this example is machine oil, castor oil or salad oil, and salad oil is that general edible salad oil just can meet the demands.
In addition, can be provided with scale 5 on described slender glass tube 1 tube wall, be convenient for measuring.As there is not scale to need to use the instrument of other band scale to assist in use.
Principle of work
During beginning, irony bead 2 is arranged in the end that pipe is provided with permanent magnet 4, slender glass tube 1 is vertically placed, remove permanent magnet 4, irony bead 2 slowly fell after about 1 second, and the irony bead enters uniform motion, the bat sound that sends along with metronome, read the scale 5 on slender glass tube 1 tube wall, the scale value of the position that record irony bead 2 falls.From the scale value of record as can be seen, in irony bead 2 dropping process, the distance of being passed through in the time interval that equates equates, so be linear uniform motion.
If do not have scale on slender glass tube 1 tube wall, can on blackboard, draw a vertical line, with slender glass tube 1 close vertical line, make irony bead 2 be arranged in the end that pipe is provided with permanent magnet 4, slender glass tube 1 is vertically placed, remove permanent magnet 4, irony bead 2 slowly fell after about 1 second, the irony bead enters uniform motion, along with the bat sound that metronome sends, and the position that the irony of drawing on vertical line bead 2 falls.From position that the irony bead 2 of drawing falls as can be seen, in irony bead 2 dropping process, the distance of being passed through in the time interval that equates equates, so be linear uniform motion.
Can make glass tube tilt to place if will change the speed of irony bead 2 whereabouts, then the speed of irony bead 2 whereabouts is slack-off, the distance of passing through in the time that equates shortens, the glass tube angle of inclination is big more, irony bead 2 fallings speed are slow more, so the speed that irony bead 2 falls can arbitrarily be controlled, but still is linear uniform motion, tests very convenient.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. an object uniform linear movement demonstration device is characterized in that, comprising: plug, slender glass tube, irony bead, permanent magnet; Plug sealing slender glass tube cavity, inner chamber is full of the liquid of viscosity coefficient between 0.1-0.8PaS, but the irony bead is located at free movement in the slender glass tube, and permanent magnet is located at the slender glass tube outer end.
2. object uniform linear movement demonstration device according to claim 1 is characterized in that, described liquid is machine oil, castor oil or salad oil.
3. object uniform linear movement demonstration device according to claim 1 is characterized in that, described slender glass tube wall is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201179849U CN201607852U (en) | 2010-02-11 | 2010-02-11 | Demonstrator of uniform linear motion of object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201179849U CN201607852U (en) | 2010-02-11 | 2010-02-11 | Demonstrator of uniform linear motion of object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201607852U true CN201607852U (en) | 2010-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201179849U Expired - Fee Related CN201607852U (en) | 2010-02-11 | 2010-02-11 | Demonstrator of uniform linear motion of object |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201607852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847001A (en) * | 2017-04-10 | 2017-06-13 | 湖州师范学院 | A kind of forst law of motion experimental technique |
| CN106935108A (en) * | 2017-03-31 | 2017-07-07 | 湖州师范学院 | A kind of forst law of motion experimental provision |
-
2010
- 2010-02-11 CN CN2010201179849U patent/CN201607852U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935108A (en) * | 2017-03-31 | 2017-07-07 | 湖州师范学院 | A kind of forst law of motion experimental provision |
| CN106847001A (en) * | 2017-04-10 | 2017-06-13 | 湖州师范学院 | A kind of forst law of motion experimental technique |
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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: 20101013 Termination date: 20110211 |