|
Size: 1646
Comment:
|
Size: 2955
Comment: converted to 1.6 markup
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| ## page was renamed from Persistence of Motion (air track) | |
| Line 2: | Line 3: |
| ||<:30%>[:PiraScheme#Mechanics: Table of Mechanics Demonstration]||<:30%>[:MEEquipmentList: List of Mechanics Equipment & Supplies]||<:30%>[:Demonstrations:Lecture Demonstrations]|| | ||<:30%>[[PiraScheme#Mechanics| Table of Mechanics Demonstration]]||<:30%>[[MEEquipmentList| List of Mechanics Equipment & Supplies]]||<:30%>[[Demonstrations|Lecture Demonstrations]]|| |
| Line 4: | Line 5: |
| = Persistence of Motion (air track), 1F30.10 = | = Persistence of Motion (Air Track), 1F30.10 = |
| Line 7: | Line 8: |
| Newton's First Law, [:Newtons1STLaw#InertiaofMotion: 1F30. Inertia of Motion] | Newton's First Law, [[Newtons1STLaw#InertiaofMotion| 1F30. Inertia of Motion]] |
| Line 10: | Line 11: |
| * '''Cabinet:''' [:MechanicsCabinet:Mechanic (ME)] * '''Bay:''' [:MechanicsCabinetBayA1:(A1)] * '''Shelf:''' #1 |
* Floor Item: ME, South Wall on shelf brackets |
| Line 14: | Line 13: |
| (attachment photo showing the fully set up demonstration) | {{attachment:AirTrackSetup21-400.jpg}} |
| Line 18: | Line 17: |
| Insert description of apparatus, its component, what it is demonstrating. | A cart on a low-friction air track is given a velocity which remains roughly constant as per Newton's first law. |
| Line 22: | Line 21: |
| ||apparatus||ME, Bay B1, Shelf #2|| || ||all other parts||ME, Bay B1, Shelf #2|| || ||...||ME, Bay B1, Shelf #2|| || |
||2.25m Air Track||ME, South Wall on shelf brackets|| || ||A Glider||ME, Bay A4, Shelf #2|| || ||Air Hose||ME, South Wall on shelf brackets|| || ||[[RedWhiteGasCart|Air Supply]]|| Located rooms 2103, 2241, and 2223||4A.EQ100 || |
| Line 27: | Line 27: |
| * '''''This demonstration requires a minimum 24 hour notice.''''' |
* '''''This demonstration requires a supply of compressed air at HVHP.''''' * '''''A [[RedWhiteGasCart| Red & White Gas Cart]] will need to be installed under the lecture tables and the air hose will need to be connected to the supply line within the stage floor.''''' |
| Line 32: | Line 32: |
| 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. |
| Line 36: | Line 40: |
| * List any Warnings.... * Demonstration may require practice. |
* N/A |
| Line 42: | Line 45: |
| 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. |
| Line 44: | Line 47: |
| ||attachment other photos||attachment other photos|| ||attachment other photos||attachment other photos|| |
||{{attachment:AirTrack01-250.jpg}}||{{attachment:LargeGlider-250.jpg}}||{{attachment:SmallGlider-250.jpg}}||{{attachment:AirHose-250.jpg}}|| ||{{attachment:AirTrackSetup28-250.jpg}}||{{attachment:AirCompressor02-250.jpg}}||{{attachment:AirCompressor15-250.jpg}}|| |
| Line 48: | Line 51: |
| * [https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel] | * [[https://www.youtube.com/user/LectureDemostrations/videos?view=1|Lecture Demonstration's Youtube Channel]] |
| Line 52: | Line 55: |
| * List any references | * N/A |
| Line 55: | Line 58: |
| [:Instructional:Home] | [[Instructional|Home]] |
Persistence of Motion (Air Track), 1F30.10
Topic and Concept:
Newton's First Law, 1F30. Inertia of Motion
Location:
- Floor Item: ME, South Wall on shelf brackets
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 |
|
|
|
2.25m Air Track |
ME, South Wall on shelf brackets |
|
A Glider |
ME, Bay A4, Shelf #2 |
|
Air Hose |
ME, South Wall on shelf brackets |
|
Located rooms 2103, 2241, and 2223 |
4A.EQ100 |
Important Setup Notes:
This demonstration requires a supply of compressed air at HVHP.
A Red & White Gas Cart will need to be installed under the lecture tables and the air hose will need to be connected to the supply line within the stage floor.
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.
|
|
|
|
|
|
|
Videos:
References:
- N/A