CN106097846A - A kind of liquid buoyancy demonstrating device - Google Patents
A kind of liquid buoyancy demonstrating device Download PDFInfo
- Publication number
- CN106097846A CN106097846A CN201610775273.2A CN201610775273A CN106097846A CN 106097846 A CN106097846 A CN 106097846A CN 201610775273 A CN201610775273 A CN 201610775273A CN 106097846 A CN106097846 A CN 106097846A
- Authority
- CN
- China
- Prior art keywords
- cup
- flat mouth
- wealthy
- liquid
- line
- 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
Classifications
-
- 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
Abstract
The invention provides a kind of device for buoyancy experiment demonstration, bottom wealthy cup, centre position is provided with line, and line connects ergometer, and ergometer is connected bottom flat mouth cup by line, experimental demonstration object volume is variable, facilitating the data that teacher repeatedly takes, and the error in data obtained is less, experiment object flat mouth cup replaces, flat mouth cup need not be taken out by test, experiment liquid will not splash down on lectern, due to need not replacing experiment object repeatedly, thus improve efficiency.
Description
Technical field
The present invention relates to physics teaching field, relation between a kind of demonstrating floating force and drain volume
Liquid welfare apparatus for demonstrating.
Background technology
According to Archimedes' principle, the buoyancy that object is subject in water is equal to the weight of the water discharged by it.In religion
In, this law is that comparison is abstract, is also the most intelligible, and in order to sharpen understanding, teacher often makes various religion
Tool, calculates the weight of object institute drain, in actual mechanical process, owing to used instrument is the most professional, during measurement
Error relatively big, bring mistaken ideas to student's cognition, and the object volume used by demonstration be constant, time to be taken multiple measurements,
Changing different objects, experiment liquid (usually water) easily splashes on lectern, brings constant to giving lessons, repeated measurement simultaneously
The time needed is longer, affects efficiency of giving lessons.
Summary of the invention
Spill and time-consumingly the longest problem for solving aforesaid liquid, the invention provides a kind of for buoyancy experiment demonstration
Device.
The present invention is achieved in that bottom wealthy cup, centre position is provided with line, and line connects ergometer, ergometer
It is connected bottom flat mouth cup by line.
Described flat mouth cup and wealthy cup are that transparent material is made.
Volume graduation mark is had with described flat mouth cup and wealthy cup cup.
Ratio between diameter or the radius of described flat mouth cup and the vertical cup of wealthy cup is 1: √ 2.
Further, the liquid color used during demonstration is different, the wealthyest cup light colour liquid, and flat mouth cup is with deep
The liquid of color, two different colors of liquid specific gravity is consistent, it is simple to teachers and students observe understanding.
The invention has the beneficial effects as follows: simple in construction, at the bottom of cost, experimental demonstration object volume is variable, facilitates teacher repeatedly
The data taken, and the error in data obtained is less, experiment object flat mouth cup replaces, and need not be taken out by flat mouth cup in test,
Experiment liquid will not splash down on lectern, due to need not replacing experiment object repeatedly, thus improve efficiency.
Accompanying drawing explanation
It is described further below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
In figure 1, wealthy cup, 2, flat mouth cup, 3, line, 4, ergometer.
Detailed description of the invention
As it can be seen, centre position is provided with line 3 bottom wealthy cup 1, line 3 connects ergometer 4, and ergometer 4 passes through
Line 3 is connected bottom flat mouth cup 2, and the ratio between diameter or the radius of flat mouth cup 2 and the vertical cup of wealthy cup 1 is 1: √ 2.
Below by embodiment, the present invention will be further described.
Embodiment 1:
In wealthy cup 1, interpolation light color liquid is to the vertical cup position of flat mouth cup 2, and the data reading now ergometer 3 (are recorded as number
According to A), and record, take the light color liquid of certain mass record (being recorded as data B) of weighing, by the light color liquid of record of weighing
Inject in wealthy cup 1, when the page is steady, record ergometer 4 reading (being recorded as data C), the rear volume etc. adding light color liquid
In the volume of 2 drains of flat mouth cup, now calculate:
C-A=B
Meet Archimedes' principle data demand.
Embodiment 2:
Light color liquid and parallel the erecting of peace cup 2 of adopting dark liquid to cup 1 it is separately added into inside wealthy cup 1 peace cup 2
Straight cup position, and to make ergometer 4 reading be zero, the now adopting dark liquid in extraction flat mouth cup 2, the reading of observation ergometer 4
Number change, weighs the weight of extracted out adopting dark liquid, and the volume of extracted out adopting dark liquid is equal to the body of flat mouth bottle 2 drain
Long-pending, so, the weight of extracted out adopting dark liquid is identical with ergometer 4 reading change, completes Archimedes' principle experimental demonstration.
Claims (5)
1. a liquid buoyancy demonstrating device, it is characterised in that bottom wealthy cup, centre position is provided with line, line connects to be surveyed
Power meter, ergometer is connected bottom flat mouth cup by line.
A kind of liquid buoyancy demonstrating device the most according to claim 1, it is characterised in that described flat mouth cup and wealthy cup
Make for transparent material.
A kind of liquid buoyancy demonstrating device the most according to claim 1, it is characterised in that described flat mouth cup and wealthy cup
Volume graduation mark is had with Bei.
A kind of liquid buoyancy demonstrating device the most according to claim 1, it is characterised in that described flat mouth cup and wealthy cup
Vertically the ratio between diameter or the radius of cup is 1: √ 2.
A kind of liquid buoyancy demonstrating device the most according to claim 1, it is characterised in that inject in flat mouth cup and wealthy cup
Liquid color different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775273.2A CN106097846A (en) | 2016-08-31 | 2016-08-31 | A kind of liquid buoyancy demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775273.2A CN106097846A (en) | 2016-08-31 | 2016-08-31 | A kind of liquid buoyancy demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106097846A true CN106097846A (en) | 2016-11-09 |
Family
ID=57224317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610775273.2A Pending CN106097846A (en) | 2016-08-31 | 2016-08-31 | A kind of liquid buoyancy demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106097846A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1720064A1 (en) * | 1989-02-01 | 1992-03-15 | Н.П. Новицкий | Device for demonstration of archimedean principle |
| CN201594341U (en) * | 2010-01-12 | 2010-09-29 | 孙登岳 | Buoyancy demonstration device used for physics teaching in high school |
| CN201629076U (en) * | 2010-04-02 | 2010-11-10 | 张清云 | Liquid buoyancy demonstrating device |
| CN203825903U (en) * | 2014-05-14 | 2014-09-10 | 刘新华 | Buoyancy demonstration device for physics teaching |
| CN203882495U (en) * | 2014-06-15 | 2014-10-15 | 綦君秀 | Physical liquid buoyancy demonstration teaching tester |
| CN204537570U (en) * | 2015-04-15 | 2015-08-05 | 柏光香 | Physics teaching the law of buoyancy apparatus for demonstrating |
-
2016
- 2016-08-31 CN CN201610775273.2A patent/CN106097846A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1720064A1 (en) * | 1989-02-01 | 1992-03-15 | Н.П. Новицкий | Device for demonstration of archimedean principle |
| CN201594341U (en) * | 2010-01-12 | 2010-09-29 | 孙登岳 | Buoyancy demonstration device used for physics teaching in high school |
| CN201629076U (en) * | 2010-04-02 | 2010-11-10 | 张清云 | Liquid buoyancy demonstrating device |
| CN203825903U (en) * | 2014-05-14 | 2014-09-10 | 刘新华 | Buoyancy demonstration device for physics teaching |
| CN203882495U (en) * | 2014-06-15 | 2014-10-15 | 綦君秀 | Physical liquid buoyancy demonstration teaching tester |
| CN204537570U (en) * | 2015-04-15 | 2015-08-05 | 柏光香 | Physics teaching the law of buoyancy apparatus for demonstrating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |
|
| WD01 | Invention patent application deemed withdrawn after publication |