[:PiraScheme#Mechanics: Table of Mechanics Demonstration] |
[:MEEquipmentList: List of Mechanics Equipment & Supplies] |
[:Demonstrations:Lecture Demonstrations] |
Rattleback, 1M40.90
Topic and Concept:
Work and Energy, [:WorkEnergy#ConservationOfEnergy: 1M40. Conservation of Energy]
Location:
Cabinet: [:MechanicsCabinet:Mechanic (ME)]
Bay: [:MechanicsCabinetBayA8:(A8)]
Shelf: #1
attachment:RattlebackMain.jpg
Abstract:
Insert succinct description of demonstration.
Equipment |
Location |
ID Number |
|
|
|
Rattleback |
[:MechanicsCabinetBayA8: ME, Bay A8, Shelf #1] |
|
Important Setup Notes:
- N/A
Setup and Procedure:
- Place Rattleback on table.
- Spin in one direction
- Spin in the opposite direction
- If Desired tap on either end to initiate spin.
Cautions, Warnings, or Safety Concerns:
- N/A
Discussion:
This Demonstration shows seems to violate the conservation of angular momentum but due to the asymmetrical shape of the Rattleback converts both energy from tapping the device and rotational energy in the non-preferred direction into rotational energy in the preferred direction.
attachment:Rattleback1.jpg |
attachment:Rattleback2.jpg |
attachment:Rattleback3.jpg |
attachment:Rattleback4.jpg |
Videos:
[https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]
References:
[https://en.wikipedia.org/wiki/Rattleback Rattleback - Wikipedia]
[http://demo.physics.uiuc.edu/LectDemo/scripts/demo_descript.idc?DemoID=1148 UIUC Physics - Rattleback]
[https://en.wikipedia.org/wiki/Angular_momentum#Conservation_of_angular_momentum Angular Momentum - Wikipedia]
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