CN106422363A - Teaching educational toy in accord with Newton's second law - Google Patents

Teaching educational toy in accord with Newton's second law Download PDF

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Publication number
CN106422363A
CN106422363A CN201611045859.XA CN201611045859A CN106422363A CN 106422363 A CN106422363 A CN 106422363A CN 201611045859 A CN201611045859 A CN 201611045859A CN 106422363 A CN106422363 A CN 106422363A
Authority
CN
China
Prior art keywords
provided
lifting wheel
newton
counterweight
elevating lever
Prior art date
Application number
CN201611045859.XA
Other languages
Chinese (zh)
Inventor
顾登慧
Original Assignee
顾登慧
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 顾登慧 filed Critical 顾登慧
Priority to CN201611045859.XA priority Critical patent/CN106422363A/en
Publication of CN106422363A publication Critical patent/CN106422363A/en

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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS
    • A63H33/00Other toys
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/08Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
    • G09B23/10Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies

Abstract

The invention discloses a teaching educational toy in accord with Newton's second law. accelerated speed number values are marked on an accelerated speed marking baseboard; one side of the low number value of the accelerated speed marking baseboard is provided with a mass bracing rod, a mass notice board is arranged on the mass bracing piece for prompt, and a mass ball is arranged on the mass bracing rod; one side of the high number value of the accelerated speed marking baseboard is provided with an accelerated speed notice baseboard, a lifting rod is arranged at the outer side of the accelerated speed notice baseboard, lifting rod teeth is arranged at the outer side of the lifting rod from top to bottom, and a teeth head of the lifting rod teen is downward; a lifting wheel shaft is placed in a lifting rod teeth socket of the lifting rod, and the lifting wheel shaft is fixed to a lifting wheel at the outer periphery of the lifting wheel shaft; a lifting wheel clamp is arranged at the top end of the lifting rod, and the lifting wheel clamp can clamp the lifting wheel to fix the height of the lifting rod. The teaching educational toy in accord with Newton's second law can let children study physical knowledge in entertainment by comparing and verifying the Newton's second law through calculated number values of data and theory drawn from experiments.

Description

Newton's second law teaching educational toy

Technical field

The present invention relates to a kind of toy art device, especially one kind can allow child amusement when learning physicses knowledge Newton's second law teaching educational toy.

Background technology

Newton's second law refers to that momentum isParticle, in external forceIn the presence of, rate is same over time for its momentum External force suffered by the particle is directly proportional, and identical with the direction of external force;It is expressed as with formula:

According to the definition of momentum,

If the quality of particle is not changed over time (i.e.), then the size same-action of the acceleration of particle movement exists The size of the external force on the particle is directly proportional, and the direction of acceleration is identical with the direction of external force;It is expressed as with formula:

Popular say, Newton's second law refers to that bonding force of the acceleration of object with suffered by object is directly proportional, with object Quality is inversely proportional to, and the direction of acceleration is identical with the direction of bonding force.Formula:F conjunction=ma (unit:N (cattle) or kilogram-meter are every The quadratic power second).

Currently, with respect to this patent, Newton's second law experimental provision disclosed in known technical construction, needed gets ready Timer calculating the time, complex operation and for the weaker child of operational capacity difficulty very big, and newton Two law experimental provisions are relatively costly.

Content of the invention

In order to overcome the shortcomings of the presence of existing technology, the present invention provides a kind of Newton's second law teaching educational toy, Newton's second law teaching educational toy can allow child's learning physicses knowledge in amusement, be drawn by specifically experiment Data and Theoretical Calculation numerical value contrast verification Newton's second law.

The technical solution adopted for the present invention to solve the technical problems is:The present invention includes mass ball, quality support bar, matter Amount notice board, elevating lever tooth, accelerate scale designation base plate, lifting wheel shaft, lifting wheel, elevating lever, draught line, fix bar, fast pulley, Force counterweight, counterweight fixed plate, force notice board, counterweight storing compartment, mass ball tray, lifting wheel folder.

Accelerate to be marked with acceleration value on scale designation base plate;The side for accelerating the low numerical value of scale designation base plate labelling is provided with matter Amount support bar, quality support bar is provided with quality notice board for pointing out, is placed with mass ball on quality support bar;Accelerate scale The side of the high numerical value of note base plate labelling is provided with acceleration notice board, is provided with elevating lever, on the outside of elevating lever on the outside of acceleration notice board Elevating lever tooth is provided with from top to bottom, and described elevating lever tooth tooth head is downward;Lifting is placed with the elevating lever tooth teeth groove of elevating lever Wheel shaft, the lifting wheel of described lifting wheel shaft and its periphery is fixed;Elevating lever top is provided with lifting wheel folder, and lifting wheel folder can be pressed from both sides Lifting wheel is held for fixing the height and position of lifting wheel;The side of the low numerical value of elevating lever backward acceleration labelling base plate labelling is provided with Fix bar, described fix bar is provided with fast pulley, and the side of the low numerical value of fix bar backward acceleration labelling base plate labelling is provided with Rod member, the rod member top is provided with the counterweight storing compartment for depositing force counterweight, is provided with counterweight fixed plate in the middle part of the rod member, described Counterweight fixed plate bottom be provided with force notice board, described counterweight fixed plate top is placed with force counterweight;Described force Counterweight is connected around the wheel periphery of fast pulley and lifting wheel by draught line with mass ball.

In one preferably or alternatively embodiment, the height of described support bar is 1 meter.

In one preferably or alternatively embodiment, the height of described elevating lever is 1 meter.

In one preferably or alternatively embodiment, the side of support bar is provided with rod member, and the rod member is provided with mass ball and deposits Sale at reduced prices.

In one preferably or alternatively embodiment, described mass ball material is steel.

In one preferably or alternatively embodiment, the numerical value of described acceleration scale designation base plate labelling is acceleration, single Position is metre per second (m/s) square.

In one preferably or alternatively embodiment, the physical quality of its own on mass ball, is marked with.

In one preferably or alternatively embodiment, itself is marked with force counterweight and is subject to physical gravity.

The invention has the beneficial effects as follows, can allow child amusement when learning physicses knowledge, by specifically testing The data for going out are with the numerical value contrast verification Newton's second law of Theoretical Calculation and the present invention is simple to operate, low cost.

Description of the drawings

The present invention is further described with reference to the accompanying drawings and examples.

Fig. 1 is the structural map of Newton's second law teaching educational toy embodiment.

Fig. 2 is the structural map of Newton's second law teaching educational toy elevating lever embodiment.

In figure

1st, mass ball

2nd, quality support bar

3rd, quality notice board

4th, elevating lever tooth

5th, accelerate scale designation base plate

6th, wheel shaft is lifted

7th, lifting wheel

8th, elevating lever

9th, draught line

10th, fix bar

11st, fast pulley

12nd, exert a force counterweight

13rd, counterweight fixed plate

14th, exert a force notice board

15th, counterweight storing compartment

16th, mass ball tray

17th, lifting wheel folder

Specific embodiment

In Fig. 1-2 illustrated embodiment, the present invention includes mass ball 1, quality support bar 2, quality notice board 3, elevating lever Tooth 4, acceleration scale designation base plate 5, lifting wheel shaft 6, lifting wheel 7, elevating lever 8, draught line 9, fix bar 10, fast pulley 11, force Counterweight 12, counterweight fixed plate 13, force notice board 14, counterweight storing compartment 15, mass ball tray 16, lifting wheel folder 17.Accelerate Acceleration value is marked with scale designation base plate 5;The side for accelerating the low numerical value of 5 labelling of scale designation base plate is provided with quality support bar 2, Quality support bar 2 is provided with quality notice board 3 for pointing out, and is placed with mass ball 1 on quality support bar 2;Accelerate scale designation bottom The side of the high numerical value of 5 labelling of plate is provided with acceleration notice board, is provided with elevating lever 8 on the outside of acceleration notice board, 8 outside of elevating lever from Elevating lever tooth 4 is top to bottm provided with, and described 4 tooth head of elevating lever tooth is downward;Liter is placed with 4 teeth groove of elevating lever tooth of elevating lever 8 Drop wheel shaft 6, the lifting wheel 7 of described lifting wheel shaft 6 and its periphery is fixed;8 top of elevating lever is provided with lifting wheel folder 17, lifting wheel Folder 17 can clamp lifting wheel 7 for fixing the height and position of lifting wheel 7;8 backward acceleration labelling 5 labellings of base plate of elevating lever are low The side of numerical value is provided with fix bar 10, and described fix bar 10 is provided with fast pulley 11,10 backward acceleration labelling bottom of fix bar The side of the low numerical value of 5 labelling of plate is provided with rod member, and the rod member top is provided with the counterweight storing compartment 15 for depositing force counterweight 12, should Counterweight fixed plate 13 is provided with the middle part of rod member, described 13 bottom of counterweight fixed plate is provided with force notice board 14, described counterweight is solid 13 top of fixed board is placed with force counterweight 12;Described force counterweight 12 around fast pulley 11 and is risen by draught line 9 with mass ball 1 The wheel periphery connection of drop wheel 7;The height of described support bar 2 is 1 meter;The height of described elevating lever 8 is 1 meter;Support bar 2 Side is provided with rod member, and the rod member is provided with mass ball tray 16;Described 1 material of mass ball is steel;Described acceleration scale The numerical value of note 5 labelling of base plate is acceleration, and unit is metre per second (m/s) square;The physical quality of its own is marked with mass ball 1;Apply Itself is marked with power counterweight 12 is subject to physical gravity.

In the specific implementation, the height of support bar 2 and elevating lever 8 is 1 meter, permissible according to Galilean experiment with falling objects The about 0.452 second time that the object of any quality falls is calculated from 1 meter of height;Force counterweight 12 is led to mass ball 1 first Cross draught line 9 to connect around the wheel periphery of fast pulley 11 and lifting wheel 7, wherein, the physical dimension of mass ball 1 and lifting wheel 7 is ignored Disregard, when release force counterweight 12 makes which that the movement of falling object is done, while the lifting wheel folder 17 of clamping lifting wheel 7 is discharged, rise Drop wheel 7 and force counterweight 12 are all doing the movement of falling object, and mass ball 1 also exists while doing the movement of falling object of vertical direction Horizontal direction is pulled the pulling force that the numerical value of the applying of line 9 is force 12 gravity of counterweight, so as to also do even acceleration in the horizontal direction Linear motion, and movement time is 0.452 second, and fall to accelerating 5 labelling of scale designation base plate numerically.

The quality of hypothesis mass ball 1 is m, it is assumed that Newton's second law F (power) is a (acceleration) with the ratio of m (quality), It should be 0.5*a*0.452*0.452 rice apart from s (being set to s) so to move horizontally after mass ball 1 falls, and can calculate and work as Known do uniformly accelerated motion object from stationary motion s rice when, the acceleration of itself should be 9.8s, unit be metre per second (m/s) put down Square, so the numerical value for accelerating 5 labelling of scale designation base plate for the ease of experiment is acceleration a is namely about 9.8s, unit is rice Per second square;So in specific experiment, it is a with the ratio of m (quality) that child can first use Newton's second law F (power) (acceleration) calculates a, then carrys out Verify Newton Second Law i.e. object with the numerical value contrast for accelerating 5 labelling of scale designation base plate Bonding force of the acceleration with suffered by object be directly proportional, be inversely proportional to the quality of object, the direction of acceleration is with the side of bonding force To identical.Formula:F conjunction=ma (unit:N (cattle) or kilogram-meter are per the quadratic power second).

Arbitrary technical scheme disclosed in the invention described above unless otherwise stated, if it discloses numerical range, then Disclosed numerical range is preferred numerical range, any it should be appreciated by those skilled in the art:Preferred numerical range The only obvious or representative numerical value of technique effect in many enforceable numerical value.As numerical value is more, it is impossible to Exhaustion, so the present invention just discloses component values to illustrate technical scheme, also, the above-mentioned numerical value that enumerates is not The restriction to the invention protection domain should be constituted.

Meanwhile, if the invention described above is disclosed or relate to parts or the structural member of connection fastened to each other, then, except another There is statement outer, be fixedly connected and can be understood as:(for example using bolt or mode connects for screw) can be releasably fixedly connected, it is also possible to It is interpreted as:Non-removable be fixedly connected (such as riveting, welding), certainly, connection fastened to each other can also be integral type structure (for example manufacturing using casting technique is integrally formed) is replaced (except substantially cannot adopting integrally formed technique).

In addition, the art for representing position relationship or shape applied in arbitrary technical scheme disclosed in the invention described above Its implication includes approximate with which, similar or close state or shape to language unless otherwise stated.The either component that the present invention is provided It can both be to be assembled by multiple single ingredients, it is also possible to the separate part that the technique that is one of the forming is manufactured.

Finally it should be noted that:Above example is only in order to illustrate technical scheme rather than a limitation;To the greatest extent Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art should be understood:Still The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics;Without deviating from this The spirit of bright technical scheme, which all should be covered in the middle of the technical scheme scope that the present invention is claimed.

Claims (8)

1. a kind of Newton's second law teaching educational toy, is characterized in that:Including mass ball, quality support bar, quality notice board, Elevating lever tooth, accelerate scale designation base plate, lifting wheel shaft, lifting wheel, elevating lever, draught line, fix bar, fast pulley, force counterweight, Counterweight fixed plate, force notice board, counterweight storing compartment, mass ball tray, lifting wheel folder;Accelerate to be marked with scale designation base plate Acceleration value;The side for accelerating the low numerical value of scale designation base plate labelling is provided with quality support bar, and quality support bar is provided with quality Notice board is used for pointing out, and is placed with mass ball on quality support bar;Accelerate the high numerical value of scale designation base plate labelling side be provided with plus Advisory speed tabs, are provided with elevating lever on the outside of acceleration notice board, be provided with elevating lever tooth on the outside of elevating lever from top to bottom, described liter Drop bar tooth tooth head is downward;Lifting wheel shaft, described lifting wheel shaft and its periphery is placed with the elevating lever tooth teeth groove of elevating lever Lifting wheel is fixed;Elevating lever top is provided with lifting wheel folder, and lifting wheel folder can clamp lifting wheel for fixing the height of lifting wheel Position;The side of the low numerical value of elevating lever backward acceleration labelling base plate labelling is provided with fix bar, and described fix bar is provided with solid Fixed wheel, the side of the low numerical value of fix bar backward acceleration labelling base plate labelling is provided with rod member, and the rod member top is provided with for depositing The counterweight storing compartment of force counterweight, is provided with counterweight fixed plate in the middle part of the rod member, described counterweight fixed plate bottom is provided with force and carries Show board, described counterweight fixed plate top is placed with force counterweight;Described force counterweight is with mass ball by draught line around solid The wheel periphery connection of fixed wheel and lifting wheel.
2. a kind of Newton's second law teaching educational toy according to claim 1, is characterized in that:Described support bar Highly it is 1 meter.
3. a kind of Newton's second law teaching educational toy according to claim 1, is characterized in that:Described elevating lever Highly it is 1 meter.
4. a kind of Newton's second law teaching educational toy according to claim 1, is characterized in that:The side of support bar sets There is rod member, the rod member is provided with mass ball tray.
5. a kind of Newton's second law teaching educational toy according to claim 1, is characterized in that:Described mass ball material Matter is steel.
6. a kind of Newton's second law teaching educational toy according to claim 1, is characterized in that:Described acceleration scale The numerical value of note base plate labelling is acceleration, and unit is metre per second (m/s) square.
7. a kind of Newton's second law teaching educational toy according to claim 1, is characterized in that:It is marked with mass ball The physical quality of its own.
8. a kind of Newton's second law teaching educational toy according to claim 1, is characterized in that:Labelling on force counterweight Have and itself be subject to physical gravity.
CN201611045859.XA 2016-11-24 2016-11-24 Teaching educational toy in accord with Newton's second law CN106422363A (en)

Priority Applications (1)

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CN201611045859.XA CN106422363A (en) 2016-11-24 2016-11-24 Teaching educational toy in accord with Newton's second law

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Application Number Priority Date Filing Date Title
CN201611045859.XA CN106422363A (en) 2016-11-24 2016-11-24 Teaching educational toy in accord with Newton's second law

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Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107895529A (en) * 2017-12-12 2018-04-10 欧阳秀华 A kind of physics teaching measure average speed experimental provision

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693687A (en) * 1986-03-14 1987-09-15 Hwang Ming Chuen Apparatus for determining the acceleration of a moving object under gravity
CN2413328Y (en) * 1999-12-08 2001-01-03 王郁知 Newton's second law demonstrating device
CN2462497Y (en) * 2001-01-19 2001-11-28 教育部教学仪器研究所 Demonstrator for newton's second law
CN2499914Y (en) * 2001-07-30 2002-07-10 韩敏 Quatitative test device for Newton's second law
CN201174183Y (en) * 2007-04-30 2008-12-31 铁 李 Validation instrument for validating the Newton 2 Law
CN203858788U (en) * 2014-05-27 2014-10-01 陈江政 Newton second law probe experimental instrument
CN205003918U (en) * 2015-09-29 2016-01-27 宿州学院 Experimental device for verify newton second law

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693687A (en) * 1986-03-14 1987-09-15 Hwang Ming Chuen Apparatus for determining the acceleration of a moving object under gravity
CN2413328Y (en) * 1999-12-08 2001-01-03 王郁知 Newton's second law demonstrating device
CN2462497Y (en) * 2001-01-19 2001-11-28 教育部教学仪器研究所 Demonstrator for newton's second law
CN2499914Y (en) * 2001-07-30 2002-07-10 韩敏 Quatitative test device for Newton's second law
CN201174183Y (en) * 2007-04-30 2008-12-31 铁 李 Validation instrument for validating the Newton 2 Law
CN203858788U (en) * 2014-05-27 2014-10-01 陈江政 Newton second law probe experimental instrument
CN205003918U (en) * 2015-09-29 2016-01-27 宿州学院 Experimental device for verify newton second law

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107895529A (en) * 2017-12-12 2018-04-10 欧阳秀华 A kind of physics teaching measure average speed experimental provision

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Application publication date: 20170222

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