Differences between revisions 4 and 8 (spanning 4 versions)

Open and Closed End Organ Pipes, 3D32.25

Topic and Concept:

Instruments, 3D32. Air Column Instruments

Location:

Cabinet: Waves and Sound (WS)
Bay: (A2 Right)
Shelf: #1&2

Abstract:

Three organ pipes, open and closed.

Equipment	Location	ID Number

Organ Pipes	WS, Bay A2 Right, Shelf #1&2
Base with Air Hose	WS, Bay A2, Shelf #1
Red and White Gas Cart	Located under lecture bench in rooms 2103 and 2241

Important Setup Notes:

This demonstration requires a supply of compressed air (usually from the red and white gas carts).

Setup and Procedure:

List steps for setup then procedure.
...

Cautions, Warnings, or Safety Concerns:

If using the red and white gas carts, make sure you are using compressed air and NOT METHANE gas which is highly flammable.

Discussion:

There are at least 3 variations of this demonstration. The below photos show the various appropriates.

The First organ pipe has a slide-able card, located at the mid point of the air column, with a hole only on one end. With the card pushed in, thus the hole is within the organ pipe, and with low to moderate air flow. The organ pipe acts like an open-open tube resonator of length L. When the card is pulled out, there by closing the organ pipe at the mind point. The pitch of the sound then drops by a factor of 4 and now acts like a open-closed tube resonator to L/2.

Videos:

Lecture Demonstration's Youtube Channel

References:

Home

-  ⇤ ← Revision 4 as of 2013-06-20 22:00:25 → 
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+   ← Revision 8 as of 2013-07-12 18:17:34 → ⇥
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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%>[[PiraScheme#WavesSound| Table of Waves and Sound Demonstration]]||<:30%>[[WSEquipmentList| Wave and Sound Equipment List]]||<:30%>[[Demonstrations|Lecture Demonstrations]]||
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-  Instruments, [:Instruments#AirColumn: 3D32. Air Column Instruments]
+  Instruments, [[Instruments#AirColumn| 3D32. Air Column Instruments]]
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- * '''Cabinet:''' [:WavesSoundCabinet: Waves and Sound (WS)]
 * '''Bay:''' [:WSCabinetRtBayA2:(A2 Right)]
+ * '''Cabinet:''' [[WavesSoundCabinet| Waves and Sound (WS)]]
 * '''Bay:''' [[WSCabinetRtBayA2|(A2 Right)]]
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-attachment:OpenClosedPipes02-400.jpg
+{{attachment:OpenClosedPipes02-400.jpg}}
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-||Organ Pipes||[:WSCabinetRtBayA2: WS, Bay A2 Right, Shelf #1&2]|| ||
||Base with Air Hose||[:WSCabinetRtBayA2: WS, Bay A2, Shelf #1]|| ||
||[:RedWhiteGasCart: Red and White Gas Cart]||Located under lecture bench in rooms 2103 and 2241|| ||
+||Organ Pipes||[[WSCabinetRtBayA2| WS, Bay A2 Right, Shelf #1&2]]|| ||
||Base with Air Hose||[[WSCabinetRtBayA2| WS, Bay A2, Shelf #1]]|| ||
||[[RedWhiteGasCart| Red and White Gas Cart]]||Located under lecture bench in rooms 2103 and 2241|| ||
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- *  ''''' This demonstration requires a supply of compressed air (usually from the [:RedWhiteGasCart:red and white gas carts]).'''''
+ *  ''''' This demonstration requires a supply of compressed air (usually from the [[RedWhiteGasCart|red and white gas carts]]).'''''
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- * If using the [:RedWhiteGasCart:red and white gas carts], make sure you are using compressed air and NOT METHANE gas which is highly flammable.
+ * If using the [[RedWhiteGasCart|red and white gas carts]], make sure you are using compressed air and NOT METHANE gas which is highly flammable.
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-Discuss the physics behind the demonstration, explaining some of the various steps of the demonstration when appropriate.
+There are at least 3 variations of this demonstration. The below photos show the various appropriates.
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-||attachment:OpenClosedPipes01-250.jpg||attachment:OpenClosedPipes03-250.jpg||attachment:OpenClosedPipes04-250.jpg||attachment:OpenClosedPipes05-250.jpg||
+The First organ pipe has a slide-able card, located at the mid point of the air column, with a hole only on one end. With the card pushed in, thus the hole is within the organ pipe, and with low to moderate air flow. The organ pipe acts like an open-open tube resonator of length L. When the card is pulled out, there by closing the organ pipe at the mind point. The pitch of the sound then drops by a factor of 4 and now acts like a open-closed tube resonator to L/2.
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-||attachment:OpenClosedPipes06-250.jpg||attachment:OpenClosedPipes07-250.jpg||attachment:OpenClosedPipes08-250.jpg||attachment:OpenClosedPipes09-250.jpg||
+{{drawing:Tube.tdraw}}

||{{attachment:OpenClosedPipes01-250.jpg}}||{{attachment:OpenClosedPipes03-250.jpg}}||{{attachment:OpenClosedPipes04-250.jpg}}||{{attachment:OpenClosedPipes05-250.jpg}}||
||{{attachment:OpenClosedPipes06-250.jpg}}||{{attachment:OpenClosedPipes07-250.jpg}}||{{attachment:OpenClosedPipes08-250.jpg}}||{{attachment:OpenClosedPipes09-250.jpg}}||
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+Line 52:
- * [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 53:
+Line 56:
- * [https://en.wikipedia.org/wiki/Organ_pipe Wikipedia - Organ Pipe]
 * [http://hyperphysics.phy-astr.gsu.edu/hbase/music/aircol.html Hyperphysics - Air Column Instruments]
+ * [[https://en.wikipedia.org/wiki/Organ_pipe|Wikipedia - Organ Pipe]]
 * [[http://hyperphysics.phy-astr.gsu.edu/hbase/music/aircol.html|Hyperphysics - Air Column Instruments]]
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+Line 60:
-[:Instructional:Home]
+[[Instructional|Home]]

fw: Diff for "OpenClosedOrganPipes"

Open and Closed End Organ Pipes, 3D32.25