CN109215457A - A kind of buoyancy experiment instructional device of physics - Google Patents
A kind of buoyancy experiment instructional device of physics Download PDFInfo
- Publication number
- CN109215457A CN109215457A CN201810568608.2A CN201810568608A CN109215457A CN 109215457 A CN109215457 A CN 109215457A CN 201810568608 A CN201810568608 A CN 201810568608A CN 109215457 A CN109215457 A CN 109215457A
- Authority
- CN
- China
- Prior art keywords
- presentation container
- guide support
- pipe
- support pipe
- buoyancy
- 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.)
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Business, Economics & Management (AREA)
- Mathematical Physics (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Pure & Applied Mathematics (AREA)
- Instructional Devices (AREA)
Abstract
The invention discloses a kind of buoyancy experiment instructional devices of physics, including Presentation Container and the buoyant spheres being placed in Presentation Container, it is characterized in that: being equipped with guide support pipe in Presentation Container one end, guide support pipe is connected to the water inlet of the water outlet of Presentation Container upper end, Presentation Container lower end respectively, and valve switch is equipped on guide support pipe；The other end of Presentation Container is equipped with the escape pipe for exhaust.The invention has the advantages that controllability is strong, it is easy to use, demonstration mode can be along reversible, and sphere upper surface can be visually demonstrated by downward pressure, sphere lower surface by upward pressure, there are floatings when pressure difference for sphere upper and lower surface, good demonstration effect, student are easy to better understand and grasp law of buoyancy by intuitively observing.
Description
Technical field
The present invention relates to physics teaching experiment field, the buoyancy experiment instructional device of specifically a kind of physics.
Background technique
In liquid, the pressure at different depth is different, and the depth of object above and below submergence in a liquid is different, object
The lower part pressure upward by liquid is larger, and pressure is also larger, it can be proved that buoyancy is equal to liquid suffered by object upwards, downwards
Pressure difference.Leaching object in a liquid, when the buoyancy suffered by it is greater than gravity, object floats；When the buoyancy suffered by it
When less than suffered gravity, object sinks；When buoyancy suffered by it is equal with suffered gravity, object floats on a liquid,
Or it swims on liquid surface.It is not only all liquid such as water, such as alcohol, kerosene or mercury, to the object being immersed in inside it
Body has buoyancy, and all liq is all.But in physics teaching, above-mentioned law of buoyancy lacks energy only by theory explaination
The teaching aid of pressure of the enough intuitive demonstration liquid to object up and down, student do not allow readily understood and grasp, and influence teaching effect
Rate and quality.
Summary of the invention
The purpose of the present invention is in order to overcome the deficiencies of the prior art, and provide a kind of buoyancy experiment instructional device of physics.
Realizing the technical solution of the object of the invention is:
A kind of buoyancy experiment instructional device of physics, it is and existing including Presentation Container and the buoyant spheres that are placed in Presentation Container
Unlike technology: being equipped with guide support pipe, the water outlet with Presentation Container upper end respectively of guide support pipe in Presentation Container one end
The water inlet connection of mouth, Presentation Container lower end, is equipped with valve switch on guide support pipe；The other end of Presentation Container, which is equipped with, to be used
In the escape pipe of exhaust.
The cup body that the Presentation Container lower end is additionally provided with guide pipe and is connected to guide pipe, guide pipe are opened equipped with water valve
It closes, convenient for flowing out the water in Presentation Container, is used for repeated multiple times experiment.
In use, buoyant spheres are placed in Presentation Container, hold by pressed by external force buoyant spheres, while slowly to demonstration
Liquid is injected in device, pressure downward by liquid due to sphere at this time can be observed sphere and not float；Open guide support
Valve switch on pipe, liquid slowly flow to Presentation Container through guide support pipe, and after vessel water is full, sphere does not float yet, directly
Water pipe to guide support pipe rises to certain altitude, and sphere lower surface is greater than the downward pressure in upper surface by upwarding pressure
Power, there are when pressure difference, buoyant spheres float.
The invention has the advantages that controllability is strong, easy to use, demonstration mode can be suitable reversible, and can visually demonstrate sphere
Upper surface is by downward pressure, sphere lower surface by upward pressure, and there are floating when pressure difference, demonstration effects for sphere upper and lower surface
Fruit is good, and student is easy to better understand and grasp law of buoyancy by intuitively observing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the implementation process schematic diagram of the embodiment of the present invention.
In figure: 1. Presentation Container, 2. 3. first valve switch of guide support pipe outlet end, 4. guide support pipe import
Hold 5. second valve switch, 6. cup body, 7. escape pipe, 8. buoyant spheres.
Specific embodiment
Embodiment:
As shown in Figure 1, a kind of buoyancy experiment instructional device of physics of the present invention, by Presentation Container 1 and is placed in Presentation Container 1
Buoyant spheres 8 are constituted, and are equipped with guide support pipe, guide support pipe outlet end 2 and 1 upper end of Presentation Container in 1 one end of Presentation Container
Water outlet connection, guide support pipe input end 4 is connected to the water inlet of 1 lower end of Presentation Container, is equipped on guide support pipe
First valve switch 3；The left side of Presentation Container is equipped with the escape pipe 7 for exhaust.
1 lower end of Presentation Container is additionally provided with guide pipe and the cup body being connected to guide pipe 6, and guide pipe is equipped with the second water valve and opens
5 are closed, by opening the second valve switch 5, the water in Presentation Container can be flowed out, be used for repeated multiple times experiment.
Claims (2)
1. a kind of buoyancy experiment instructional device of physics, special including Presentation Container and the buoyant spheres being placed in Presentation Container
Sign is:
It is equipped with guide support pipe in Presentation Container one end, guide support pipe holds with the water outlet of Presentation Container upper end, demonstration respectively
The water inlet of device lower end is connected to, and valve switch is equipped on guide support pipe；The other end of Presentation Container is equipped with for exhaust
Escape pipe.
2. the buoyancy experiment instructional device of physics according to claim 1, it is characterized in that: the Presentation Container lower end is also set
The cup body for having guide pipe and being connected to guide pipe, guide pipe are equipped with valve switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568608.2A CN109215457A (en) | 2018-06-05 | 2018-06-05 | A kind of buoyancy experiment instructional device of physics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568608.2A CN109215457A (en) | 2018-06-05 | 2018-06-05 | A kind of buoyancy experiment instructional device of physics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109215457A true CN109215457A (en) | 2019-01-15 |
Family
ID=64991112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810568608.2A Withdrawn CN109215457A (en) | 2018-06-05 | 2018-06-05 | A kind of buoyancy experiment instructional device of physics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109215457A (en) |
-
2018
- 2018-06-05 CN CN201810568608.2A patent/CN109215457A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190115 |
|
| WW01 | Invention patent application withdrawn after publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Mengyun Document name: Refund Approval Notice |
|
| DD01 | Delivery of document by public notice |