Quick Answer: The Organ Pipe Model is a physics teaching aid for demonstrating resonance, standing waves and harmonics in a column of air, linking air-column length to the pitch of the sound produced.
Last updated: October 2026
Key Features
Shows how a confined air column resonates at particular natural frequencies
Connects standing-wave diagrams with an audible acoustic demonstration
Relates the effective length of the air column to frequency and pitch
Introduces the fundamental mode, overtones and harmonics
About This Product
During a supervised demonstration, students listen to or measure the resonant response of the air column and relate it to wavelength, frequency and pitch. Where the design allows, different effective lengths or end conditions can be compared. The Organ Pipe Model fits introductory acoustics and wave lessons, and can be used alongside a Resonance Tube or a Sound Pipe for wider study of resonant air columns. Export supply of the Organ Pipe Model can be arranged to laboratories and schools in Botswana, Iran, Seychelles, Cameroon and Equatorial Guinea.
Frequently Asked Questions
Q1. How does pipe length affect the sound? The effective length of the air column sets its resonant frequencies, so a change in length changes the pitch heard. Students relate this to wavelength, the fundamental mode and harmonics.
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