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ERIC Number: EJ1013800
Record Type: Journal
Publication Date: 2013-Mar
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0031-9120
Seeing Sound Waves: A Simple Method to See Sound Waves Travelling through the Open Air
Downie, Neil A.
Physics Education, v48 n2 p199-202 Mar 2013
Here is a way to show a sound wave travelling through air in real time. The method employs a set of low-cost microphone--LED units and demonstrates the movement of a pulse of sound as it lights up LEDs along a long (100-200 m) distance across a field. (Contains 4 figures.)
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A