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ERIC Number: EJ1083502
Record Type: Journal
Publication Date: 2006-Nov
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0031-921X
Calculating "g" from Acoustic Doppler Data
Torres, Sebastian; Gonzalez-Espada, Wilson J.
Physics Teacher, v44 n8 p536-539 Nov 2006
Traditionally, the Doppler effect for sound is introduced in high school and college physics courses. Students calculate the perceived frequency for several scenarios relating a stationary or moving observer and a stationary or moving sound source. These calculations assume a constant velocity of the observer and/or source. Although seldom discussed in this context, generalization of the Doppler effect for accelerated sound sources is relatively straightforward and can be used as an enriching tool in the classroom. The purpose of this paper is to describe a simple experiment to determine the acceleration of gravity ("g") from an acoustic source in free fall.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Secondary Education; High Schools; Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A