|
Size: 3495
Comment:
|
← Revision 11 as of 2013-07-12 18:17:44 ⇥
Size: 3556
Comment: converted to 1.6 markup
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 2: | Line 2: |
| ||<: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 7: | Line 7: |
| Linear Momentum, [:Linear_Momentum#Collisions1D: 1N30. Collisions in One Dimension] | Linear Momentum, [[Linear_Momentum#Collisions1D| 1N30. Collisions in One Dimension]] |
| Line 12: | Line 12: |
| attachment:InelasticActionShot02-400.jpg | {{attachment:InelasticActionShot02-400.jpg}} |
| Line 24: | Line 24: |
| ||[:RedWhiteGasCart:Red & White Gas Carts]||ME, Bay B1, Shelf #2|| || | ||[[RedWhiteGasCart|Red & White Gas Carts]]||ME, Bay B1, Shelf #2|| || |
| Line 33: | Line 33: |
| 1. Place air track on lecture bench, and connect the compressed air supply from the lower white panel of the [:RedWhiteGasCart:Red & White Gas Cart] to the track using an air hose. | 1. Place air track on lecture bench, and connect the compressed air supply from the lower white panel of the [[RedWhiteGasCart|Red & White Gas Cart]] to the track using an air hose. |
| Line 48: | Line 48: |
| ||attachment:InelasticGliders-02-250.jpg||attachment:InelasticLongGliders-03-250.jpg||attachment:InelasticShortGliders-04-250.jpg||attachment:AirTrackWithGliders-250.jpg|| ||attachment:InelasticActionShot01-250.jpg||attachment:InelasticActionShot03-250.jpg||attachment:InelasticActionShot04-250.jpg||attachment:InelasticActionShot05-250.jpg|| ||attachment:AirHose03-250.jpg||attachment:AirHose02-250.jpg||attachment:AirHose01-250.jpg|| |
||{{attachment:InelasticGliders-02-250.jpg}}||{{attachment:InelasticLongGliders-03-250.jpg}}||{{attachment:InelasticShortGliders-04-250.jpg}}||{{attachment:AirTrackWithGliders-250.jpg}}|| ||{{attachment:InelasticActionShot01-250.jpg}}||{{attachment:InelasticActionShot03-250.jpg}}||{{attachment:InelasticActionShot04-250.jpg}}||{{attachment:InelasticActionShot05-250.jpg}}|| ||{{attachment:AirHose03-250.jpg}}||{{attachment:AirHose02-250.jpg}}||{{attachment:AirHose01-250.jpg}}|| |
| Line 53: | Line 53: |
| * [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 57: | Line 57: |
| * [http://hyperphysics.phy-astr.gsu.edu/hbase/elacol.html Elastic & Inelastic Collisions - Hyperphysics] * [https://en.wikipedia.org/wiki/Inelastic_collision Inelastic Collisions - Wikipedia] |
* [[http://hyperphysics.phy-astr.gsu.edu/hbase/elacol.html|Elastic & Inelastic Collisions - Hyperphysics]] * [[https://en.wikipedia.org/wiki/Inelastic_collision|Inelastic Collisions - Wikipedia]] |
| Line 61: | Line 61: |
| [:Instructional:Home] | [[Instructional|Home]] |
Air Track Totally Inelastic Collision, 1N30.32
Topic and Concept:
Linear Momentum, 1N30. Collisions in One Dimension
Location:
- Floor Item: ME, South Wall
Abstract:
A moving glider collides with a stationary one and sticks.
Equipment |
Location |
ID Number |
|
|
|
2.25 m Air Track |
Floor Item: ME, South Wall |
|
Small & Large Air Track Gliders |
ME, Bay A4, Shelf #4 |
|
Red Clay |
Double Steel Door Bin Cabinet |
|
Air Hose |
Floor Item: ME, South Wall |
|
ME, Bay B1, Shelf #2 |
|
Important Setup Notes:
- This demonstration requires a supply of compressed air, permanent supplies located in rooms 2103, 2223, 2241.
Setup and Procedure:
Place air track on lecture bench, and connect the compressed air supply from the lower white panel of the Red & White Gas Cart to the track using an air hose.
- Make sure that the gliders to be used have clay on one side and that the clay juts out a little off center (see photo).
- Place two gliders on the track, one on an end of the track and the other roughly in the middle.
- Turn on the air supply by opening the valve located on the lower white panel of the cart.
- If the gliders seem to slide in one direction, this is most likely due to the track being unlevel. Adjust the set screws until this no longer occurs. It is a good idea to do this ahead of time.
- Give the glider on the end a good push toward the glider at rest to create a collision.
Cautions, Warnings, or Safety Concerns:
- Make sure you are using compressed air (white panel) and NOT methane gas (red panel) which is extremely flammable!
Discussion:
In conservative systems, momentum is always conserved. In the lab frame, one glider is in motion and one is at rest. Thus, the total momentum of the system is P0 = m1 * v1 where m1 is the mass of the glider in motion and v1 is its speed. In an inelastic collision, the two bodies stick to each other. Since P0 = Pf , ignoring friction and air resistance, the speed of the two cars together is lower than the initial speed of the first glider. Pf = (m1 + m2) * v1+2.
|
|
|
|
|
|
|
|
|
|
|
Videos:
References: