CN107464479A - A kind of conservation of momentum energy transformation experiment device - Google Patents
A kind of conservation of momentum energy transformation experiment device Download PDFInfo
- Publication number
- CN107464479A CN107464479A CN201710741029.9A CN201710741029A CN107464479A CN 107464479 A CN107464479 A CN 107464479A CN 201710741029 A CN201710741029 A CN 201710741029A CN 107464479 A CN107464479 A CN 107464479A
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- China
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- sliding block
- experimental bench
- fixed plate
- expansion link
- experiment porch
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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
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
Abstract
This application discloses a kind of conservation of momentum energy transformation experiment device, including：First experiment porch, the second experiment porch, angular adjustment component, the first sliding block and the second sliding block；Angular adjustment component includes the first fixed plate, the second fixed plate and rotating shaft, first fixed plate is connected with the second fixed plate by rotating shaft, first fixed plate fixes the first experimental bench, and it is in 0 180 degree angle that the second fixed plate, which fixes the second experimental bench, the first experimental bench and the second experimental bench along axis of rotation,；Velocity sensor, communication component and power supply, velocity sensor and communication component electrical connection are set in the first sliding block and the second sliding block；One end of first experimental bench and/or the second experimental bench, which is set, promotes emitting module；Counterweight hole of different sizes is respectively arranged with first sliding block and the second sliding block, being fixed on counterweight hole has geometrical clamp.Conservation of momentum energy transformation experiment apparatus function variation disclosed in the present application, makes student's many-side understand the conservation of momentum.
Description
Technical field
The application is related to Physical Experiment field, more particularly to a kind of conservation of momentum energy transformation experiment device.
Background technology
Some more abstract things, such as the conversion teaching of the conservation of momentum, energy often be present in physical teaching course,
In order that student can be better understood from the conservation of momentum and energy conversion transfer, many teachers rack one's brains, many has been made
Experiment teaching aid, student is set to understand the law of conservation of momentum by experiment.
Conservation of momentum energy transformation experiment device is the device for the checking conservation of momentum commonly used in physics teaching, physically
The content of the law of conservation of momentum is：One system not is zero by external force or suffered sum of making a concerted effort, and the aggregated momentum of this system is kept
Constant, this conclusion is called the law of conservation of momentum.Existing conservation of momentum energy transformation experiment device be generally two dollies with
And dotted timer etc., speed when two dollies collide is measured by dotted timer and collided to calculate two dollies realizations
The conservation of momentum energy conversion of journey.
Then, existing instruments used for education are single, student can not be made to understand the law of conservation of momentum from many aspects.
The content of the invention
It is single with existing instruments used for education this application provides a kind of conservation of momentum energy transformation experiment device, it can not make
Raw the problem of understanding the law of conservation of momentum from many aspects.
In a first aspect, a kind of conservation of momentum energy transformation experiment device, including：First experiment porch, the second experiment porch,
Angular adjustment component, the first sliding block and the second sliding block；
The angular adjustment component includes the first fixed plate, the second fixed plate and rotating shaft, first fixed plate and second
Fixed plate is connected by the rotating shaft, and first fixed plate fixes first experimental bench, and second fixed plate fixes institute
The second experimental bench is stated, first experimental bench and the second experimental bench are in 0-180 degree angles along axis of rotation；
Velocity sensor, communication component and power supply, the power supply electricity are set in first sliding block and the second sliding block
Source is respectively electrically connected to the velocity sensor and communication component, velocity sensor and the communication component electrical connection；
One end of first experimental bench and/or the second experimental bench away from the rotating shaft, which is set, promotes emitting module；
Multiple counterweights to match with different weight counterweight size are respectively arranged with first sliding block and the second sliding block
Hole, also fixing on the counterweight hole has geometrical clamp.
, can be by the first experiment porch and second in the conservation of momentum energy transformation experiment device that the embodiment of the present application provides
Experiment porch is horizontal positioned or one tilts that another is horizontal, so as to verify on horizontal plane the law of conservation of momentum and,
Conversion between gravitional force and kinetic energy.Speed data is sensed by the velocity sensor being arranged in sliding block, makes the result
It is more accurate.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of conservation of momentum transformation experiment apparatus structure schematic diagram that the embodiment of the present application provides；
Fig. 2 is a kind of angular adjustment component structure diagram that the embodiment of the present application provides；
Fig. 3 is a kind of fixed folder structure schematic diagram that the embodiment of the present application provides；
Fig. 4 is a kind of promotion emitting module structural representation that the embodiment of the present application provides；
A kind of conservation of momentum transformation experiment device that Fig. 5 provides for the embodiment of the present application uses schematic diagram；
Fig. 6 is that a kind of expansion link that the embodiment of the present application provides fixes schematic diagram；
Fig. 7 is a kind of Telescopic rod structure schematic diagram that the embodiment of the present application provides；
Symbol represents in figure：
The experiment porch of 1- first, the experiment porch of 2- second, 3- promote emitting module, 31- spring spools, 32- springs, 33-
Promotion sliding block, 34- stop valves, the sliding blocks of 4- first, the sliding blocks of 5- second, 6- velocity sensors, 7- communication components, 8- expansion links,
81- rotary shafts, mother's 82- expansion link, 83- expansion links, 9- power supplies, 10- lubricious material layers, 11- rotating shafts, 12- counterweights hole,
13- geometrical clamps, 14- fixed grooves.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Referring to Fig. 1, a kind of conservation of momentum transformation experiment apparatus structure schematic diagram provided for the embodiment of the present application.
Adjusted as shown in figure 1, conservation of momentum transformation experiment device includes the first experiment porch 1, the second experiment porch 2, angle
Save component, the first sliding block 4 and the second sliding block 5.
First experiment porch 1 is connected with the second experiment porch 2 by angular adjustment component, wherein, angular adjustment component bag
The first fixed plate and the second fixed plate (not shown) are included, the first experiment porch 1 is fixed in the first fixed plate, the second experiment porch
2 are fixed in the second fixed plate.Further, referring to Fig. 2, a kind of angular adjustment modular construction provided for the embodiment of the present application
Schematic diagram, as described in Figure, the first fixed plate are embedded in the first experiment porch 1, and the second fixed plate is embedded in the second experiment porch 2
On, because the first fixed plate and the second fixed plate can rotate around rotating shaft 11, so, the first experiment porch 1 and the second experiment are flat
Platform 2 can rotate around rotating shaft 11, so that the first experiment porch 1 and the second experiment porch 2 are in 0-180 degree angles, shown in Fig. 1
It is in 180 degree between first experiment porch 1 and the second experiment porch 2.
It is not smooth enough between rotating shaft between the first experiment porch 1 and the second experiment porch 2, therefore, in order to realize first
Smooth excessiveness between the experiment porch 2 of experiment porch 1 and second, in the upper surface of the first experiment porch 1 and the second experiment porch 2
Lubricious material layer 10 is set, and the first sliding block 4 and the second sliding block 5 are placed on the first experiment porch 1 and the second experiment porch 2 formed
On experimental bench, lubricious material layer 10 can reduce the first sliding block 4 and the second sliding block 5 and the friction on experimental bench surface, so as to increase reality
The precision tested.
In addition, in order to reduce the unsmooth caused shadow to experiment between the first experiment porch 1 and the second experiment porch 2
Ring, during the conservation of momentum is verified, at smooth excessiveness that the first sliding block 4 and the second sliding block 5 can be avoided, at smooth excessiveness it
Outer collision elsewhere.
In conservation of momentum energy transformation experiment, the collision process of the first sliding block 4 and the second sliding block 5 is complete on experimental bench
Into.Because in the first sliding block 4 and the collision process of the second sliding block 5, the speed of the first sliding block 4 and the second sliding block 5 can change,
The change checking conservation of momentum energy conversion of front and rear speed is collided according to the first sliding block 4 and the second sliding block 5, therefore, it is necessary in real time
Speed after monitoring the first sliding block 4 and the second sliding block 5 before the collision.
So in the embodiment of the present application, velocity sensor 6, communication set are respectively provided with the first sliding block 4 and the second sliding block 5
Part 7 and power supply 9, wherein, power supply 9 is that velocity sensor 6 and communication component 7 are powered, velocity sensor 6 and communication set
Part 7 electrically connects.Velocity sensor 6 can sense the speed of the first sliding block 4 and the second sliding block 5 in real time, and speed data is passed through and led to
Letter component 7 is sent to mobile terminal or components of data analysis.Wherein, communication component 7 is arranged to bluetooth or WIFI components, and speed passes
Sensor 6 is arranged to microsecond or the other velocity sensor of nanosecond, makes the speed that senses more accurate.
The velocity sensor set in first sliding block 4 and the second sliding block 5 can sense the first sliding block 4 and the second sliding block 5 in real time
Speed, principle of conservation of momentum formula is：m1v1+m2v2=m1v1'+m2v'2, therefore, when verifying principle of conservation of momentum, it is necessary to
The front and rear speed of collision is obtained, is not required for the speed for colliding other times point outside front and rear time point.Due to first
Velocity sensor 6 in the sliding block 5 of sliding block 4 and second can picking rate data in real time, therefore, velocity sensor 6 will can be adopted in real time
The speed data of collection is sent to mobile terminal or components of data analysis by communication component 7, passes through mobile terminal or data analysis
The change of the first sliding block 4 and the speed of the second sliding block 5 can be observed in component.
It is therefore, dynamic in checking in the embodiment of the present application due to colliding the speed outside surrounding time point without the concern for place
When measuring law of conservation, the frictional force of the first sliding block 4 and the second sliding block 5 and experimental bench in collision, and the first sliding block 4 can be neglected
And the second frictional force between sliding block 5.Therefore, it is arranged on the lubricious material on the first experiment porch 1 and the surface of the second experiment porch 2
The coefficient of friction of layer 10 can also ignore.
, may after velocity sensor 6, communication component 7 and power supply 9 are set in the first sliding block 4 and the second sliding block 5
Differ the first sliding block 4 and the weight of the second sliding block 5, or gravimetric value is not integer, it is number when making the calculating conservation of momentum
It is tired, can be the first sliding block 4 and the counterweight of the second sliding block 5 by adding counterweight on the first sliding block 4 and the second sliding block 5 therefore.
Referring to Fig. 2, the structural representation of a kind of geometrical clamp 13 provided for the embodiment of the present application.In the embodiment of the present application,
The counterweight hole 12 to match with different weight counterweight size is provided with first sliding block 4 and the second sliding block 5, counterweight can be placed on
It is the first sliding block 4 and the counterweight of the second sliding block 5 in counterweight hole 12, geometrical clamp 13 is also set up on counterweight hole 12, makes geometrical clamp 13 solid
Determine counterweight.
Geometrical clamp 13 includes a harsh arc clevis, and harsh arc clevis includes oval fixing band, oval fixing band two
End connection support arm, one of support arm are fixed on the edge in counterweight hole 12, and support arm can rotate around fixing point, another branch
Subcard button is set in brace, master card button is set on counterweight hole 12 corresponding with the support arm, subcard button can be buckled in master card button,
So as to which counterweight is fixed in counterweight hole 12, prevent counterweight from ejecting or being rocked back and forth during slide block movement.
During conservation of momentum energy transformation experiment, one of sliding block of the first sliding block 4 and the second sliding block 5 has just
Beginning speed, and collided with another sliding block, or two sliding blocks are respectively provided with an initial velocity.Therefore, can be flat in the first experiment
One end away from rotating shaft 11, which is set, on the experiment porch 2 of platform 1 and/or second promotes emitting module 3, makes promotion emitting module 3 to the
5 one initial velocities of one sliding block 4 and/or the second sliding block.
Promote emitting module 3 to may be configured as the emitting structural of spring 32 or hydraulic launch structure, promoted in the embodiment of the present application
Emitting module 3 is arranged to the emitting structural of spring 32, referring to Fig. 3, a kind of promotion knot of emitting module 3 provided for the embodiment of the present application
Structure schematic diagram.
As shown in figure 3, promote emitting module 3 to include spring spool 31, spring 32, promote sliding block 33 and stop valve 34,
Wherein, spring spool 31 is fixed on one end of the first experiment porch 1.It is vertical in first one end of experiment porch 1 away from rotating shaft 11
One baffle plate is set, and spring spool 31 is vertically arranged with baffle plate, is extended to the other end of the first experiment porch 1.
Spring 32 is arranged in spring spool 31, and one end of spring 32 is fixedly connected with baffle plate, and the other end is with promoting sliding block
33 are fixedly connected.Stop valve 34 is set in the one end of spring spool 31 away from baffle plate, stop valve 34 passes through spring spool 31
On stop hole, so as to prevent promote sliding block 33 skid off.
If stop valve 34 is inserted in stop hole, the spring 32 in spring spool 31 is compressed, when extraction stops
After movable valve 34, promote sliding block 33 to be slid in and out in the presence of the motive force of spring 32, and hit the first sliding block 4, slided to first
Move an initial velocity.
Promotion emitting module 3 shown in Fig. 3 may be provided at the first experiment porch 1 and/or the second experiment porch 2, herein not
It is specifically limited, those skilled in the art can designed, designed as needed.
Referring to Fig. 4, a kind of conservation of momentum transformation experiment device provided for the embodiment of the present application uses schematic diagram.
First experiment porch 1 as shown in Figure 4 is rotated by rotating shaft 11, and supports the first experiment porch 1 by expansion link 8,
Make the first experiment porch 1 and the second experiment porch 2 in obtuse angle, the embodiment of the present application can be realized to be converted between gravitional force and kinetic energy
Experiment, is combined with above-described embodiment, the apparatus function variation that the embodiment of the present application provides, can simultaneously be realized and be moved in horizontal direction
Measure energy conversion confirmatory experiment between the checking of conservation and gravitional force and kinetic energy.
Angle between first experiment porch 1 and the second experiment porch 2 is into obtuse angle, and therefore, one of experimental bench is to incline
Ramp-like state, another experimental bench are horizontality, and in the embodiment of the present application, the first experiment porch 1 is inclined, the second experiment
Platform 2 is horizontal.Supported using expansion link 8 below inclined experimental bench, tilted so that experimental bench is stable.
The adjustable length of expansion link 8, so as to adjust the angle between the first experiment porch 1 and the second experiment porch 2, and
Can be according to the gravitional force of the length computation sliding block of expansion link 8.Expansion link 8 can be fixed on the bottom surface of the first experiment porch 1, referring to
Fig. 5, schematic diagram is fixed for a kind of expansion link 8 that the embodiment of the present application provides.
As shown in figure 5, setting fixed groove 14 on the ground of the first experiment porch 1, expansion link 8 is arranged on fixed groove 14
It is interior, wherein, the one end of expansion link 8 away from rotating shaft 11 is fixed in fixed groove 14, also, expansion link 8 can revolve around the fixing point
Turn.Referring specifically to Fig. 6, Fig. 6 is the structural representation of a kind of expansion link 8 that the embodiment of the present application provides.
As shown in fig. 6, expansion link 8 includes rotary shaft 81, female expansion link 82 and sub- expansion link 83, wherein, expansion link 8 can be around
Rotary shaft 11 is rotated, and rotary shaft 81 is fixed in fixed groove 14.Female expansion link 82 is rotatably connected with rotary shaft 81, specifically,
Rotary shaft 81 can run through female expansion link 82, so that female expansion link 82 rotates around rotary shaft 81.Sub- expansion link 83 is sheathed on mother and stretched
In contracting bar 82, therefore, the length of expansion link 8 can be adjusted by adjusting sub- expansion link 83.
Further, the closure that can be covered is set on fixed groove 14, and closure is detachably pacified with fixed groove 14
Dress.Expansion link 8 is arranged in the hollow cavity between fixed groove 14 and closure, when need not use expansion link 8, or is tested
When demonstrate,proving the conservation of momentum energy conversion in horizontal direction, expansion link 8 is withdrawn in fixed groove 14, and covers closure, so as to
Protection expansion link 8 simultaneously prevents expansion link 8 from covering dirt.
Scale is set on female expansion link 82 and sub- expansion link 83, by reading on sub- expansion link 83 and female expansion link 82
Scale, the length of expansion link 8 is determined, so that it is determined that the height of sliding block, passes through the gravitional force of height calculating sliding block.
Understood in foregoing description, set in one end of the first experiment porch 1 and/or the first experiment porch 1 and promote transmitting group
Part 3, if only an experimental bench sets promotion emitting module 3 wherein, expansion link 8 can be set with promoting emitting module 3
In on same experimental bench.
The device that the embodiment of the present application provides also includes components of data analysis, components of data analysis including signal receiver,
Processor and display, wherein, signal receiver is electrically connected to processor, and processor is electrically connected to display, signal receiver
With the wireless connection of communication component 7, the speed data gathered by velocity sensor 6 sent for receiving communication component 7.Experimenter
The velocity variations of the first sliding block 4 and the second sliding block 5 can be observed by display, especially the first sliding block 4 and the second sliding block 5 collide
Front and rear speed.Wherein, signal receiver is arranged to the bluetooth to match with communication component 7 or WIFI components.
Seen from the above description, between the embodiment of the present application provides device the first experiment porch 1 and the second experiment porch 2
Angle can adjust, when angle is 180 degree between the first experiment porch 1 and the second experiment porch 2, the He of the first experiment porch 1
Second experiment porch 2 tiles in the horizontal plane, and the checking of conservation of momentum energy conversion in horizontal direction can be achieved；First is real simultaneously
One of experimental bench can also be supported by expansion link 8 by testing the experiment porch 2 of platform 1 and second, make the He of the first experiment porch 1
Between second experiment porch 2 in obtuse angle, one of sliding block is placed on inclined experimental bench, another is placed on horizontal experiment
Platform, so as to realize that the transformation experiment of gravitional force and kinetic energy is verified.Therefore, the device provided by the embodiment of the present application, can be from
Many-side understands the law of conservation of momentum.
In addition, record the velocity variations of the first sliding block 4 and the second sliding block 5 in real time by display, and according to the first sliding block 4
Front and rear speed, which is collided, with the second sliding block 5 verifies the conservation of momentum, compared with prior art, the device side that the embodiment of the present application provides
Just it is quick.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice the disclosure invented here
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledges in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (7)
- A kind of 1. conservation of momentum energy transformation experiment device, it is characterised in that including：First experiment porch, the second experiment porch, Angular adjustment component, the first sliding block and the second sliding block；The angular adjustment component includes the first fixed plate, the second fixed plate and rotating shaft, and first fixed plate and second are fixed Plate is connected by the rotating shaft, and first fixed plate fixes first experimental bench, and second fixed plate fixes described the Two experimental benches, first experimental bench and the second experimental bench are in 0-180 degree angles along axis of rotation；Velocity sensor, communication component and power supply, the power supply point are set in first sliding block and the second sliding block The velocity sensor and communication component, velocity sensor and the communication component electrical connection are not electrically connected to；One end of first experimental bench and/or the second experimental bench away from the rotating shaft, which is set, promotes emitting module；Multiple counterweight holes to match with different weight counterweight size, institute are respectively arranged with first sliding block and the second sliding block State also to fix on counterweight hole and have geometrical clamp.
- 2. device according to claim 1, it is characterised in that described device also includes expansion link；Wherein,The one side that first experiment porch or the second experiment porch contact with ground is provided with fixed groove, the expansion link peace Loaded in the fixed groove；One end of the expansion link, which rotates, to be fixed in the fixed groove, and the other end of the expansion link can turn along fixed position Dynamic, the expansion link is used to support first experimental bench or the second experimental bench, makes first experimental bench and the second experimental bench Between in obtuse angle, be provided with scale on the expansion link.
- 3. device according to claim 2, it is characterised in that be provided with the fixed groove and the fixed groove phase The closure covered is matched, the closure is detachably installed with the fixed groove, the closure and the fixed groove Between there is hollow cavity, the expansion link is located in the hollow cavity.
- 4. device according to claim 1, it is characterised in that the geometrical clamp includes a harsh arc clevis, the rigidity Arc folder includes oval fixing band and the support arm being connected with the oval fixing band both sides, wherein,The support arm of the oval fixing band side is fixed with counterweight bore edges rotation；Subcard button is provided with the support arm of the oval fixing band opposite side, counterweight bore edges corresponding with the support arm On be provided with the master card button to match with the subcard button.
- 5. device according to claim 2, it is characterised in that described device also includes components of data analysis, the data Analytic unit includes signal receiver, processor and display, wherein,The signal receiver is electrically connected to the processor, and the processor is electrically connected to the display；The signal receiver and the communication component wireless connection, for receive it is that the communication component is sent, by the speed Spend the speed data of sensor collection.
- 6. device according to claim 1, it is characterised in that first experimental bench and the second experimental bench place sliding block Surface is provided with lubricious material layer.
- 7. device according to claim 5, it is characterised in that the communication component is arranged to bluetooth or WIFI components, institute State bluetooth or WIFI components that signal receiver is also configured as matching with the communication component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710741029.9A CN107464479A (en) | 2017-08-22 | 2017-08-22 | A kind of conservation of momentum energy transformation experiment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710741029.9A CN107464479A (en) | 2017-08-22 | 2017-08-22 | A kind of conservation of momentum energy transformation experiment device |
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| CN107464479A true CN107464479A (en) | 2017-12-12 |
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| CN201710741029.9A Pending CN107464479A (en) | 2017-08-22 | 2017-08-22 | A kind of conservation of momentum energy transformation experiment device |
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| CN108230841A (en) * | 2018-02-08 | 2018-06-29 | 何德学 | A kind of conservation of momentum experimental demonstration method and device of physics teaching |
| CN109410713A (en) * | 2018-11-22 | 2019-03-01 | 马浩然 | A kind of high school physics that experimental precision is high conservation of momentum experimental provision |
| CN111161600A (en) * | 2020-01-21 | 2020-05-15 | 中北大学 | Experiment demonstration device based on momentum conservation law |
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Application publication date: 20171212 |
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| RJ01 | Rejection of invention patent application after publication |