What is Sound? - Quickly Discover What Sound Really Is [video]

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Files
What_is_Sound_Quickly_Discover_What_Sound_Really_Is.mp4 (11.78 MB)
Authors
Naval Postgraduate School Physics
Advisors
Second Readers
Subjects
Date of Issue
2014
Date
Published on Dec 24, 2014
Publisher
Language
Abstract
What is Sound? This simple demonstration visually shows how sound waves are produced from a vibrating surface. A frequency generator is hooked up to a power amplifier, and the resultant signal is used to drive a loudspeaker. The signal is also sent to an oscilloscope. After listening to the loudspeaker driven at an audible frequency, the drive frequency is lowered to several Hertz. At this point the motions are slow enough for the eye to see, although the sound is no longer audible.
Type
Video
Description
NPS Physics
Physics Demonstrations
URI
https://hdl.handle.net/10945/56268
Series/Report No
Department
Physics
Organization
Identifiers
NPS Report Number
Sponsors
Funding
Format
Duration: 4:15. Filesize: 12.4 MB
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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