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| ||<:30%>[:PiraScheme#WavesSound: Table of Waves and Sound Demonstration]||<:30%>[:MEEquipmentList: List of Mechanics Equipment & Supplies]||<:30%>[:Demonstrations:Lecture Demonstrations]|| | ||<:30%>[[PiraScheme#WavesSound| Table of Waves and Sound Demonstration]]||<:30%>[[MEEquipmentList| List of Mechanics Equipment & Supplies]]||<:30%>[[Demonstrations|Lecture Demonstrations]]|| |
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| Oscillations, [:Oscillations#SHM: A40. Simple Harmonic Motion] | Oscillations, [[Oscillations#SHM| A40. Simple Harmonic Motion]] |
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| * '''Cabinet:''' [:MechanicsCabinet:Mechanic (ME)] * '''Bay:''' [:MechanicsCabinetBayA11:(A11)] |
* '''Cabinet:''' [[MechanicsCabinet|Mechanic (ME)]] * '''Bay:''' [[MechanicsCabinetBayA11|(A11)]] |
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| ||Rotating Gizmo||[:MechanicsCabinetBayA11: ME, Bay A11, Shelf T]|| || | ||Rotating Gizmo||[[MechanicsCabinetBayA11| ME, Bay A11, Shelf T]]|| || |
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| * [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]] |
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| * [https://en.wikipedia.org/wiki/Oscillation Wikipedia - Oscillation] | * [[https://en.wikipedia.org/wiki/Oscillation|Wikipedia - Oscillation]] |
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| [:Instructional:Home] | [[Instructional|Home]] |
Rotating Gizmo, 3A40.18
Topic and Concept:
Oscillations, A40. Simple Harmonic Motion
Location:
Cabinet: Mechanic (ME)
Bay: (A11)
Shelf: T
Abstract:
A device operated with a hand crank causes two small, circular discs to move in simple harmonic motion. One disc moves in a circular path while the other moves in a vertical line showing the physical correspondence of SHM with the "unit" circle (sinusoidal functions).
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Rotating Gizmo |
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Important Setup Notes:
- N/A
Setup and Procedure:
- Place device on tabletop and operate with the hand crank.
Cautions, Warnings, or Safety Concerns:
- N/A
Discussion:
When the crank is turned, both discs move. One disc moves in a circle while the other moves in a vertical line. The period of oscillation for each disc depends on the speed at which the crank is turned. Regardless of the crank speed, the period of oscillation for each disc will always be the same. This shows how a 1D SHO, or more generally any SHO, can be represented with a sinusoidal function. Such functions have their domain on the unit circle, which is represented by the circularly moving disc.
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