CN206097618U - Experimental device for be used for verifying newton second law - Google Patents
Experimental device for be used for verifying newton second law Download PDFInfo
- Publication number
- CN206097618U CN206097618U CN201620828355.4U CN201620828355U CN206097618U CN 206097618 U CN206097618 U CN 206097618U CN 201620828355 U CN201620828355 U CN 201620828355U CN 206097618 U CN206097618 U CN 206097618U
- Authority
- CN
- China
- Prior art keywords
- sliding machine
- chute
- law
- paper tape
- newton
- 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.)
- Expired - Fee Related
Links
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The utility model relates to an experimental device for be used for verifying newton second law belongs to high school experiment teaching field. Include: the spout, the spout is including the baffle of locating both sides and the slide of locating the bottom, in the spout was located to slip dolly, slip dolly, slip dolly bottom was equipped with the pulley, and slip dolly both sides are equipped with the wheel that sideslips, ticker -timer, ticker -timer wear to adorn the paper tape in locating the spout in the ticker -timer, slip dolly one end is connected to the paper tape, and the slip dolly other end is equipped with the couple, workstation, spout are located on the workstation, the workstation is close to slip dolly one end and is equipped with the fixed pulley, around having the string, string one end connecting hooks, string other end connection well -bucket on the fixed pulley. The utility model discloses can accurate verification newton second law, easy operation, the experimental data is accurate.
Description
Technical field
This utility model is related to a kind of experimental provision for Verify Newton Second Law, belongs to senior middle school's experimental teaching neck
Domain.
Background technology
With the improvement of people's living standards, to educating pay attention to day by day, education under battle conditions, experiment are progressively moved towards from books education
Course progressively increases in curricula.But, for for Verify Newton Second Law experimental provision in, usual tabula rasa light
Plate is tested, and sliding machine can not be taken the air line on tabula rasa completely.Existing education experiment apparatus is simply coarse and crude, experimental data
Relative coarseness, it is not accurate enough, affect experiment effect.
Utility model content
The purpose of this utility model is to provide a kind of experimental provision for Verify Newton Second Law, for verifying newton
Second law, simple to operate, experimental data is accurate.
Experimental provision for Verify Newton Second Law described in the utility model, including：
Chute, chute include the baffle plate located at both sides and the slideway located at bottom；
Sliding machine, in chute, sliding machine bottom is provided with pulley to sliding machine, and sliding machine both sides are provided with sideslip
Wheel；
Dotted timer, dotted timer install paper tape, paper tape connection sliding machine in chute in dotted timer
One end, the sliding machine other end are provided with hook；
Workbench, chute is on workbench；
Workbench is provided with fixed pulley near sliding machine one end, is wound with cord on fixed pulley, cord one end coupling hook, carefully
Rope other end connection well-bucket.
When starting experiment, well-bucket and cord are removed, first balance frictional force, adjust the angle of inclination balance frictional force of chute,
Enable sliding machine uniform motion；Dotted timer switches on power；Cord is bypassed fixed pulley to be suspended on hook, release is hung
Bucket, dotted timer start to get ready on paper tape, then, remove paper tape, and number on paper tape；Sliding machine quality is kept first
Constant, constantly the quality of adjustment well-bucket, can be put into sand, and the quality of the sand that weighs with scale, many experiments are removed paper tape, and given
Paper tape is numbered；Then, well-bucket mass conservation is kept, constantly the quality of adjustment well-bucket, many experiments remove paper tape, and paper feeding band
Numbering；The paper tape got by dotted timer, calculates sliding machine acceleration, and according to sliding machine and the quality of well-bucket,
Verify Newton Second Law.
Preferably, slideway is provided with regulating bolt near dotted timer one end.The inclination of chute can very easily be adjusted
Angle, it is easy to operate.
Preferably, block is provided between fixed pulley and chute, block is fixed on workbench.In reality after avoiding chute from inclining
The accuracy of moving influence experimental data during testing.
Compared with prior art, the beneficial effects of the utility model are：
(1) this utility model is by using chute and side roller, it can be ensured that sliding machine moves along a straight line in chute,
Improve the accuracy of experimental data；
(2) by arranging regulating bolt, the angle of inclination of chute can be easily adjusted, meets requirement of experiment, operation letter
It is single.
Description of the drawings
Fig. 1 is the structural representation of an embodiment of the present utility model,
Fig. 2 is the top view of Fig. 1.
In figure：11st, well-bucket 12, cord 13, fixed pulley 14, block 15, chute 16, hook 17, slip
Dolly 18, side roller 19, paper tape 20, dotted timer 21, regulating bolt 22, workbench 23, pulley；
15.1st, baffle plate 15.2, slideway.
Specific embodiment
This utility model is described further with reference to embodiment：
As shown in Fig. 1～Fig. 2, the experimental provision for Verify Newton Second Law described in the utility model, including：
Chute 15, chute 15 include the baffle plate 15.1 located at both sides and the slideway 15.2 located at bottom；Sliding machine 17 is sliding
In chute 15,17 bottom of sliding machine is provided with pulley 23 to dynamic dolly 17, and 17 both sides of sliding machine are provided with side roller 18；Get ready
Timer 20, dotted timer 20 install paper tape 19, the connection sliding machine of paper tape 19 in chute 15 in dotted timer 20
17 one end, 17 other end of sliding machine are provided with hook 16；Workbench 22, chute 15 is on workbench 22；Workbench 22 is close
17 one end of sliding machine is provided with fixed pulley 13, and cord 12 is wound with fixed pulley 13, and 12 one end coupling hook 16 of cord, cord 12 are another
One end connects well-bucket 11.Slideway 15.2 is provided with regulating bolt 21 near 20 one end of dotted timer.Fixed pulley 13 and chute 15 it
Between be provided with block 14, block 14 is fixed on workbench 22.
The common statement of Newton interpolation algorithm：The size of object acceleration is directly proportional with active force, with the matter of object
Amount is inversely proportional to, and is directly proportional to the inverse of mass of object；The direction of acceleration is identical with the direction of active force.
In the experiment of Verify Newton Second Law, existing experiment teaching aid is generally slided on tabula rasa using sliding machine 17
Tested, sliding machine 17 is moved diagonally sometimes, even walked S molded line road sometimes, it is impossible to take the air line completely, for experimental data
There is certain impact.Find through multiple observational study later, be primarily due to be limited to the restriction of prior art condition, tabula rasa and
Unavoidably there is friction between sliding machine 17, particularly with the teaching aid of time length, tabula rasa abrasion is more serious, causes to slide
17 sideslip of dolly.Therefore 17 sideslip of sliding machine can be avoided using chute 15, while arranging side roller 18 can reduce slip
The friction of dolly 17 and baffle plate 15.1, improves experimental data accuracy.
The course of work or operation principle：
Dotted timer 20 is switched on power；
1st, preparation：
Record 11 mass of sliding machine 17 and well-bucket：The mass M and M' of sliding machine 17 and well-bucket 11 are measured with balance,
Data record is got off.
Balance frictional force：Cord 12 and well-bucket 11 are removed, the angle of inclination that regulating bolt 21 adjusts chute 15 is rotated, with flat
Weighing apparatus frictional force, the linear motion state until sliding machine 17 can remain a constant speed on inclined-plane, it is also possible to from dotted timer 20
Whether the point beaten on paper tape 19 is uniformly judging.
2nd, start experiment：
Counterweight is placed on sliding machine 17, appropriate sand in well-bucket 11, is put into, the quality m and m' record of counterweight and sand
Get off.Cord 12 is bypassed fixed pulley 13 to be suspended on hook 16, sliding machine 17 is decontroled, dotted timer 20 is beaten on paper tape 19
Lower series of points, removes paper tape 19, and numbering is write on paper tape 19.
3rd, first group of experimental data：
The mass conservation of sliding machine 17 is kept, changes the quality of sand, the quality of sand weighs with scale, done by step 3 more
Test several times, experiment number voluntarily can be set as needed, generally do 5 experiments.Calculate the 19 corresponding acceleration of every paper tape
The value of degree.
Mapping：Acceleration a is represented with vertical coordinate, abscissa represents the total force (M'+m') of active force, i.e. sand and well-bucket 11
G, describes corresponding point, construction line on coordinate plane according to experimental result.If figure line is a straight line for crossing origin, turn out
During object of study mass conservation, its acceleration is directly proportional to active force suffered by it.
4th, second group of experimental data：
The mass conservation of well-bucket 11 is kept, changes the quality of counterweight, that is, the quality of change sliding machine 17, by step
Do 3 more and test several times, experiment number voluntarily can be set as needed, generally do 5 experiments.Calculate every paper tape 19 corresponding
The value of acceleration.
Mapping：Acceleration a is represented with vertical coordinate, abscissa represents the inverse 1/ of sliding machine 17 and in-car counterweight gross mass
(M+m) corresponding point, and construction line are described according to experimental result on coordinate plane, if figure line is a straight line for crossing origin,
Turn out its acceleration when active force is constant suffered by object of study to be inversely proportional to its quality.
Direction and the description of relative position relation in this utility model to structure, such as description upper and lower all around,
Do not constitute to restriction of the present utility model, only for convenience of description.
Claims (3)
1. a kind of experimental provision for Verify Newton Second Law, it is characterised in that include：
Chute (15), chute (15) include the baffle plate (15.1) located at both sides and the slideway (15.2) located at bottom；
Sliding machine (17), in chute (15), sliding machine (17) bottom is provided with pulley (23) to sliding machine (17), slides
Dolly (17) both sides are provided with side roller (18)；
Dotted timer (20), dotted timer (20) install paper tape (19) in dotted timer (20) in chute (15),
Paper tape (19) connects sliding machine (17) one end, and sliding machine (17) other end is provided with hook (16)；
Workbench (22), chute (15) is on workbench (22)；
Workbench (22) is provided with fixed pulley (13) near sliding machine (17) one end, is wound with cord (12), carefully on fixed pulley (13)
Rope (12) one end coupling hook (16), cord (12) other end connection well-bucket (11).
2. the experimental provision for Verify Newton Second Law according to claim 1, it is characterised in that slideway (15.2)
Regulating bolt (21) is provided near dotted timer (20) one end.
3. the experimental provision for Verify Newton Second Law according to claim 2, it is characterised in that fixed pulley (13)
Block (14) is provided with and chute (15) between, block (14) is fixed on workbench (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620828355.4U CN206097618U (en) | 2016-07-29 | 2016-07-29 | Experimental device for be used for verifying newton second law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620828355.4U CN206097618U (en) | 2016-07-29 | 2016-07-29 | Experimental device for be used for verifying newton second law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206097618U true CN206097618U (en) | 2017-04-12 |
Family
ID=58467631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620828355.4U Expired - Fee Related CN206097618U (en) | 2016-07-29 | 2016-07-29 | Experimental device for be used for verifying newton second law |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206097618U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898204A (en) * | 2017-05-11 | 2017-06-27 | 张鸣 | A kind of high school physicses Experiments of Machanics rail set |
| CN108364547A (en) * | 2018-02-08 | 2018-08-03 | 枣庄学院 | A kind of machinery system dynamics experimental provision |
| CN109637299A (en) * | 2019-02-01 | 2019-04-16 | 陈晨 | A kind of environmental and durable type physics acceleration test device |
-
2016
- 2016-07-29 CN CN201620828355.4U patent/CN206097618U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898204A (en) * | 2017-05-11 | 2017-06-27 | 张鸣 | A kind of high school physicses Experiments of Machanics rail set |
| CN108364547A (en) * | 2018-02-08 | 2018-08-03 | 枣庄学院 | A kind of machinery system dynamics experimental provision |
| CN109637299A (en) * | 2019-02-01 | 2019-04-16 | 陈晨 | A kind of environmental and durable type physics acceleration test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206097618U (en) | Experimental device for be used for verifying newton second law | |
| CN206891656U (en) | Adjustable pitch propeller static balance measurement apparatus | |
| CN106644226A (en) | Frictional resistance calibrating device aiming at liquid crystal coating | |
| CN108489652A (en) | The determination method and device of third rail and the contact forces of pantagraph current collector | |
| CN106153248A (en) | A kind of high accuracy static three-dimensional force sensor caliberating device | |
| CN205708485U (en) | Multifunctional conveying device | |
| CN205122035U (en) | Centripetal force experiment teaching demonstration appearance | |
| CN204463605U (en) | Archimedes principle quadruple inspection demonstrator | |
| CN107328524A (en) | Adjustable pitch propeller static balance measuring method and its device | |
| CN205302769U (en) | Appearance is verified to newton second law intelligence | |
| CN206400897U (en) | A kind of physical test platform | |
| CN206208449U (en) | A kind of high accuracy static three-dimensional force sensor caliberating device | |
| CN205642730U (en) | Calibration arrangement for three fens force transducer | |
| CN209281698U (en) | A kind of multi-functional physics experiment teaching instrument | |
| CN106568594A (en) | Sliding door smoothness detection method and apparatus | |
| CN208819468U (en) | A kind of junior physics study appurtenance | |
| CN101404124A (en) | Method and instrument for validating Newton second law | |
| CN205920661U (en) | Physics is equilibrium of forces teaching aid for course | |
| CN206271276U (en) | A kind of electronic friction measurement instrument | |
| CN206532490U (en) | Verify the experimental provision of the parallelogram rule of power | |
| CN210123333U (en) | Elasticity coefficient measuring device for physical experiments | |
| CN107796578B (en) | The detection method of titanium alloy gyroplane frame strength | |
| CN206056863U (en) | The barycenter aided measurement device of the uneven object of in irregular shape, quality | |
| CN103268721B (en) | Three-power balancing device for measuring friction coefficient | |
| CN206864042U (en) | A kind of physics teaching spring force demonstration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20170729 |