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Size: 1532
Comment:
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Size: 2495
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 7: | Line 7: |
| Instruments, [:Instruments#TuningFork: 3D46. Tuning Forks] | Instruments, [:Instruments#AirColumn: 3D32. Air Column Instruments] |
| Line 11: | Line 11: |
| * '''Bay:''' [:WSCabinetRtBayA1:(A1)] * '''Shelf:''' #1 |
* '''Bay:''' [:WSCabinetRtBayA4:(A4 Right)] * '''Shelf:''' #1&2 |
| Line 14: | Line 14: |
| attachment: mainPhoto | attachment:OrganPipes03-400.jpg |
| Line 18: | Line 18: |
| Insert succinct description of demonstration. | A collection of open, closed, and variable length organ pipes. |
| Line 22: | Line 22: |
| ||apparatus||[:WSCabinetRtBayA1: WS, Bay A1, Shelf #2]|| || ||all other parts||[:WSCabinetRtBayB1: WS, ME, Bay B1, Shelf #2]|| || ||...||[:WSCabinetRtBayA5: WS, Bay A5, Shelf #2]|| || |
||Organ Pipes||[:WSCabinetRtBayA2: WS, Bay A2 Right, Shelf #1&2]|| || ||Base||[:WSCabinetRtBayA2: WS, Bay A2 Right, Shelf #1]|| || ||[:RedWhiteGasCart:Red and White Gas Carts]||Located beneath lecture bench in rooms 2103 and 2241|| || |
| Line 28: | Line 28: |
| * ''''' ''''' | * '''''If you'd like to sound the organ pipes, a supply of compressed air is required (usually from the [:RedWhiteGasCart:red and white gas carts]).''''' |
| Line 33: | Line 33: |
| 1. List steps for setup then procedure. 1. ... |
1. Arrange the set of organ pipes (forming a full scale) in order by tone. 1. If desiring to sound the pipes, place the base on the table and connect to the compressed air supply. 1. Make sure the valves in the base are open: pull out wooden knob located beneath each organ pipe. 1. Open the air supply valve. 1. Adjust volume by adjusting how open the valves in the base are. |
| Line 37: | Line 40: |
| * | * If using the [:RedWhiteGasCart:red and white gas carts], make sure you are using compressed air and NOT METHANE gas which is highly flammable. |
| Line 42: | Line 45: |
| Discuss the physics behind the demonstration, explaining some of the various steps of the demonstration when appropriate. | Standing waves form in the organ pipes when air is pushed through them. The fundamental frequency of each pipe (the note that plays) is determined by the length of the pipe and whether or not the end of the pipe is open or closed. |
| Line 44: | Line 47: |
| ||attachment: photo||attachment: photo||attachment: photo||attachment: photo|| | ||attachment:OrganPipes01-250.jpg||attachment:OrganPipes02-250.jpg|| |
| Line 51: | Line 54: |
| * List any references | * [http://hyperphysics.phy-astr.gsu.edu/hbase/music/aircol.html Hyperphysics - Air Column Instruments] * [https://en.wikipedia.org/wiki/Organ_pipe Wikipedia - Organ Pipe] |
[:PiraScheme#WavesSound: Table of Waves and Sound Demonstration] |
[:WSEquipmentList: Wave and Sound Equipment List] |
[:Demonstrations:Lecture Demonstrations] |
Organ Pipes, 2D32.24
Topic and Concept:
Instruments, [:Instruments#AirColumn: 3D32. Air Column Instruments]
Location:
Cabinet: [:WavesSoundCabinet: Waves and Sound (WS)]
Bay: [:WSCabinetRtBayA4:(A4 Right)]
Shelf: #1&2
attachment:OrganPipes03-400.jpg
Abstract:
A collection of open, closed, and variable length organ pipes.
Equipment |
Location |
ID Number |
|
|
|
Organ Pipes |
[:WSCabinetRtBayA2: WS, Bay A2 Right, Shelf #1&2] |
|
Base |
[:WSCabinetRtBayA2: WS, Bay A2 Right, Shelf #1] |
|
[:RedWhiteGasCart:Red and White Gas Carts] |
Located beneath lecture bench in rooms 2103 and 2241 |
|
Important Setup Notes:
If you'd like to sound the organ pipes, a supply of compressed air is required (usually from the [:RedWhiteGasCart:red and white gas carts]).
Setup and Procedure:
- Arrange the set of organ pipes (forming a full scale) in order by tone.
- If desiring to sound the pipes, place the base on the table and connect to the compressed air supply.
- Make sure the valves in the base are open: pull out wooden knob located beneath each organ pipe.
- Open the air supply valve.
- Adjust volume by adjusting how open the valves in the base are.
Cautions, Warnings, or Safety Concerns:
If using the [:RedWhiteGasCart:red and white gas carts], make sure you are using compressed air and NOT METHANE gas which is highly flammable.
Discussion:
Standing waves form in the organ pipes when air is pushed through them. The fundamental frequency of each pipe (the note that plays) is determined by the length of the pipe and whether or not the end of the pipe is open or closed.
attachment:OrganPipes01-250.jpg |
attachment:OrganPipes02-250.jpg |
Videos:
[https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]
References:
[http://hyperphysics.phy-astr.gsu.edu/hbase/music/aircol.html Hyperphysics - Air Column Instruments]
[https://en.wikipedia.org/wiki/Organ_pipe Wikipedia - Organ Pipe]
[:Instructional:Home]