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← Revision 8 as of 2018-07-18 18:49:31 ⇥
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| ||<:30%>[:PiraScheme#WavesSound: Table of Waves and Sound Demonstration]||<:30%>[:WSEquipmentList: Wave and Sound Equipment List]||<:30%>[:Demonstrations:Lecture Demonstrations]|| | ||<30% style="text-align:center">[[PiraScheme#WavesSound|Table of Waves and Sound Demonstration]] ||<30% style="text-align:center">[[WSEquipmentList|Wave and Sound Equipment List]] ||<30% style="text-align:center">[[Demonstrations|Lecture Demonstrations]] || |
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| '''Topic and Concept:''' | |
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| '''Topic and Concept:''' Wave Motion, [:WaveMotion#InterferenceOfSound: 3B55. Interference and Diffraction of Sound] |
. Wave Motion, [[WaveMotion#InterferenceOfSound|3B55. Interference and Diffraction of Sound]] '''pira200 Listed''' |
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| * '''Cabinet:''' [:WavesSoundCabinet: Waves and Sound (WS)] * '''Bay:''' [:WSCabinetRtBayA1:(A1 Right)] |
* '''Cabinet:''' [[WavesSoundCabinet|Waves and Sound (WS)]] * '''Bay:''' [[WSCabinetRtBayA1|(A1 Right)]] |
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| attachment:TwoSpeakerInterference01-400.jpg | {{attachment:TwoSpeakerInterference01-400.jpg}} |
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||<:style="width: 60%" :40%>'''Equipment'''||<:30%>'''Location'''||<:25%>'''ID Number'''|| |
||<40% style="" ;text-align:center">'''Equipment''' ||<30% style="text-align:center">'''Location''' ||<25% style="text-align:center">'''ID Number''' || |
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| ||Speakers Mounted on 1 m Bar on a Stand||[:WSCabinetRtBayA1: WS, Bay A1, Shelf T]|| || ||Function Generator||[:WSCabinetRtBayB1: WS, ME, Bay B1, Shelf #2]|| || ||BNC cables||?|| || |
||Speakers Mounted on 1 m Bar on a Stand ||[[WSCabinetRtBayA1|WS, Bay A1, Shelf T]] || || ||Function Generator ||[[EMCabinetLtBayB1|EM, Bay B1 Left, Shelf #2]] || || ||Coaxial Cables ||Located in rod and tackle cabinet near main lecture halls || || |
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| '''''Important Setup Notes:''''' * N/A |
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| '''Setup and Procedure:''' | '''''Important Setup Notes:''''' * N/A '''Setup and Procedure:''' |
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'''Discussion:''' |
'''Discussion:''' |
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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/Interference_%28wave_propagation%29 Wikipedia - Interference] | * [[https://en.wikipedia.org/wiki/Interference_(wave_propagation)|Wikipedia - Interference]] |
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[:Instructional:Home] |
[[Instructional|Home]] |
Two Speaker Interference, 3B55.10
Topic and Concept:
Wave Motion, 3B55. Interference and Diffraction of Sound
pira200 Listed
Location:
Cabinet: Waves and Sound (WS)
Bay: (A1 Right)
Shelf: T
Abstract:
Two speakers driven from a common source are mounted at the ends of a 1 m rotatable bar.
Equipment |
Location |
ID Number |
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Speakers Mounted on 1 m Bar on a Stand |
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Function Generator |
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Coaxial Cables |
Located in rod and tackle cabinet near main lecture halls |
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Important Setup Notes:
- N/A
Setup and Procedure:
- Place stand on tabletop.
- Using a right-angle bracket, connect the 1 m bar with mounted speakers at the center to the stand.
- Plug in the function generator nearby.
- Connect the speakers to the function generator using BNC cables. Only one speaker needs to be connected (the two are connected internally).
- Choose a function (sine works well) and frequency.
- You can move locations of constructive and destructive interference by rotating the 1 m (need to loosen right-angle clamp first).
Cautions, Warnings, or Safety Concerns:
- N/A
Discussion:
Sound waves obey the principle of superposition. When two sound (pressure) waves encounter one another, they interfere. Spatially, the resultant wave has alternating spots of constructive and destructive interference.
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Videos:
References: