ERIC Number: EJ1037502
Record Type: Journal
Publication Date: 2014-May
Abstractor: As Provided
Reference Count: 6
Direct Measurement of the Speed of Sound Using a Microphone and a Speaker
Gómez-Tejedor, José A.; Castro-Palacio, Juan C.; Monsoriu, Juan A.
Physics Education, v49 n3 p310-313 May 2014
We present a simple and accurate experiment to obtain the speed of sound in air using a conventional speaker and a microphone connected to a computer. A free open source digital audio editor and recording computer software application allows determination of the time-of-flight of the wave for different distances, from which the speed of sound is calculated. The result is in very good agreement with the reported value in the literature.
Descriptors: Measurement Techniques, Science Instruction, Scientific Concepts, Computer Uses in Education, Laboratory Equipment, Science Laboratories, Computer Software, Acoustics, Science Experiments, Physics, Educational Technology, Secondary School Science, High Schools
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Publication Type: Journal Articles; Reports - Research
Education Level: Secondary Education; High Schools
Authoring Institution: N/A