Tuning fork as “simple” sound © Siemens Stiftung 2016 CC BY-SA 4.0 international

Tuning fork as “simple” sound

Video

Video (00:10 minutes):
Example of a simple periodic sound signal is the relatively pure sound of a tuning fork. The video shows the oscilloscope graph!

English, Spanish, German
Video (1.1 MByte)
2017-04-20
The pure periodic sound is the simplest sound event. It corresponds to a regular sine vibration (= harmonic vibration) of pure frequency. The sound of a tuning fork is the nearest of all non-synthetic sound sources to this ideal.

Information and ideas:
Suitable for demonstration purposes but also good for self-study on the part of the students. Idea: show the video without sound to begin with. The students should then guess what sort of noise/sound it might be.

Relevant for teaching:
Acoustic phenomena
Sound/acoustics: parameters
Communication and understanding
Vibrations and waves
Illustration
Physics; Technology
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Middle/high school; Vocational training
Sound; Wave (physics)
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© Siemens Stiftung 2016
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