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The Physics Teacher -- January 2005 -- Volume 43, Issue 1, pp. 36

Speed of Sound Using Lissajous Figures

Richard E. Berg and Dieter R. Brill

University of Maryland, College Park, MD

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Demonstration of the speed of sound in air is a classic component of the general physics curriculum. This demonstration uses a sine wave from an audio oscillator and the same signal picked up by a movable microphone to produce Lissajous figures and determine the speed of sound.

© 2005 American Association of Physics Teachers

KEYWORDS and PACS

Keywords

sound-level meters, student experiments, educational courses, physics fundamentals, physics education

PACS

  • 01.50.Pa

    Laboratory experiments and apparatus

  • 01.50.Qb

    Laboratory course design, organization, and evaluation

History
Online Dec 2004

PUBLICATION DATA

ISSN

0031-921X (print)  

Publisher

$abstract.society.value is a Member of CrossRef American Association of Physics Teachers

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1119/1.1845989

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  2. Jon P. Vickery, "Determination of the velocity of sound in air," Phys. Teach. 3, 170–171 (April 1965).
  3. W. W. Sleator, "Proofs of the equation U=(E/rho)1/2 for the velocity of sound," Am. J. Phys. 17, 51–62 (Feb. 1949AJPIAS000017000002000051000001). [ISI]
  4. Austin J. O'Leary, "Elementary derivation of equations for wave speeds," Am. J. Phys. 22, 327–334 (May 1954). [ISI]
  5. Austin J. O'Leary, "On a derivation of the equation for the speed of sound by W.W. Sleator," Am. J. Phys. 25, 115–116 (Feb. 1957AJPIAS000025000002000115000001).
  6. A.B. Mlodzeevskii, Lektsionnye demonstratsii po fizike, (Gostekhizdat, Moscow, 1948–1954). Condensed English trans. Lecture Demonstrations in Physics, edited by H.A. Robinson (AIP, New York, 1963).
  7. F. E. Christensen, "Determination of the velocity of sound in air," Phys. Teach. 2, 390–391 (Nov. 1964).
  8. Experimentelle Übungen zur Physik, Teil I+II, Praktikumsberichte von Andreas Gaumann, http://homepages.compuserve.de/agaumann/a-praktikum/node23.html.
  9. http://www.physik.uni-dortmund.de/didaktik/lernwerkstatt/schall_gas.htm. http://www.physik.uni-dortmund.de/didaktik/lernwerkstatt/schall_luft.html.
  10. http://www.ph.unimelb.edu.au/staffresources/lecdem/wa6.htm.
  11. http://www.dartmouth.edu/~physics/labs/descriptions/sound.waves.html.
  12. http://www.physics.umd.edu/lecdem/services/demos/demosh1/h1-27.htm.
  13. A Physicist's Desk Reference, edited by Herbert L. Anderson (AIP, New York, 1981), p. 54–55.
  14. http://www.physics.umd.edu/lecdem/outreach/QOTW/active/questions.htm.



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