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Size: 2370
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| Deletions are marked like this. | Additions are marked like this. |
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| * '''Cabinet:''' [:MechanicsCabinet:Mechanic (ME)] * '''Bay:''' [:MechanicsCabinetBayA1:(A1)] * '''Shelf:''' #1 |
* Floor Item: ME, South Wall |
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| (attachment photo showing the fully set up demonstration) | attachment: photo |
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| A cart is pushed on a low-friction air track and thus given a velocity which remains roughly constant as per Newton's first law. | A cart on a low-friction air track is given a velocity which remains roughly constant as per Newton's first law. |
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| ||apparatus||ME, Bay B1, Shelf #2|| || ||all other parts||ME, Bay B1, Shelf #2|| || ||...||ME, Bay B1, Shelf #2|| || |
||Air Track||Floor Item: ME, South Wall|| || ||Air Gliders||ME, Bay A4, Shelf #2|| || ||Air Hose||ME, Bay B1, Shelf #2|| || |
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| * N/A | * This demonstration requires a supply of compressed air. |
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| 1. Make a Setup check list. 1. ... |
1. Place air track on lecture bench. 1. Level the track using the set screws on each leg. 1. Connect the track to the air supply using the air hose. 1. Place air glider on track. 1. Let the air flow into the track by opening the supply valve. 1. Give the air glider a push to give it an initial velocity. |
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| Insert description of demonstration, how is the demonstration preformed. | The kinematic version of Newton's first law says that a body in motion tends to stay in motion moving in a straight line unless acted upon by a force. This is exactly what is happening here. The glider is given an initial velocity being accelerated by the lecturer's hand. Upon release, the glider maintains its final velocity. The air track provides a low-friction surface for the glider to move on so not much energy can be lost as heat. Thus the speed will remain roughly constant. The direction will change, however. The velocity will switch between '''v,,0,,''' and -'''v,,0,,''' each time it hits a bumper in an elastic collision whereby the direction of its momentum is reversed. |
[:PiraScheme#Mechanics: Table of Mechanics Demonstration] |
[:MEEquipmentList: List of Mechanics Equipment & Supplies] |
[:Demonstrations:Lecture Demonstrations] |
Persistence of Motion (air track), 1F30.10
Topic and Concept:
Newton's First Law, [:Newtons1STLaw#InertiaofMotion: 1F30. Inertia of Motion]
Location:
- Floor Item: ME, South Wall
attachment: photo
Abstract:
A cart on a low-friction air track is given a velocity which remains roughly constant as per Newton's first law.
Equipment |
Location |
ID Number |
|
|
|
Air Track |
Floor Item: ME, South Wall |
|
Air Gliders |
ME, Bay A4, Shelf #2 |
|
Air Hose |
ME, Bay B1, Shelf #2 |
|
Important Setup Notes:
- This demonstration requires a supply of compressed air.
Setup and Procedure:
- Place air track on lecture bench.
- Level the track using the set screws on each leg.
- Connect the track to the air supply using the air hose.
- Place air glider on track.
- Let the air flow into the track by opening the supply valve.
- Give the air glider a push to give it an initial velocity.
Cautions, Warnings, or Safety Concerns:
- N/A
Discussion:
The kinematic version of Newton's first law says that a body in motion tends to stay in motion moving in a straight line unless acted upon by a force. This is exactly what is happening here. The glider is given an initial velocity being accelerated by the lecturer's hand. Upon release, the glider maintains its final velocity. The air track provides a low-friction surface for the glider to move on so not much energy can be lost as heat. Thus the speed will remain roughly constant. The direction will change, however. The velocity will switch between v0 and -v0 each time it hits a bumper in an elastic collision whereby the direction of its momentum is reversed.
attachment other photos |
attachment other photos |
attachment other photos |
attachment other photos |
Videos:
[https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]
References:
- N/A
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