|
Size: 1982
Comment:
|
Size: 2495
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 22: | Line 22: |
| ||Organ Pipes||[:WSCabinetRtBayA4: WS, Bay A4 Right, Shelf #1&2]|| || ||Base||[:WSCabinetRtBayB1: WS, ME, Bay A4 Right, Shelf #1]|| || |
||Organ Pipes||[:WSCabinetRtBayA2: WS, Bay A2 Right, Shelf #1&2]|| || ||Base||[:WSCabinetRtBayA2: WS, Bay A2 Right, Shelf #1]|| || |
| 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].''''' | * '''''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 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 52: | Line 55: |
| * [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]