How can acoustic resonance reduce the average velocity in a falling body?

Authors

  • V. Torres-Zúñiga

Keywords:

Resonant tube, acoustic pressure, high school demonstration

Abstract

In this article, a simple experiment is described to overcome the misconception that acoustic pressure and levitation effects are difficult to observe in school laboratories. Analysis of the free fall velocity of a toy parachute inside a vertical tube, driven by sound in a range of frequencies around the resonant condition, exhibits the resonance frequency, the node pressure zones, and the optimal conditions to obtain acoustical levitation of a light body.

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Published

2011-01-01

How to Cite

[1]
V. Torres-Zúñiga, “How can acoustic resonance reduce the average velocity in a falling body?”, Rev. Mex. Fis. E, vol. 57, no. 1 Jan-Jun, pp. 16–20, Jan. 2011.

Issue

Vol. 57 No. 1 Jan-Jun (2011): Revista Mexicana de Física E

Section

Artículos

License

Copyright (c) 2019 Revista Mexicana de Física E

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors retain copyright and grant the Revista Mexicana de Física E right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.