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written by James Lincoln
This video illustrates the concept of beats in a simple computer experiment using an online tone generator. Running the tone generator in two different browser windows gives the user a way to listen to the interference between tones at different frequencies. The connection between the difference in tone frequencies and the observed beat frequency is immediately apparent.

This video is part of AAPT Films, a collection of videos focused on teaching physics topics through simple experiments and demonstrations.
Subjects Levels Resource Types
Oscillations & Waves
- Acoustics
= Pitch
- Wave Motion
= Beats
- High School
- Middle School
- Lower Undergraduate
- Informal Education
- Instructional Material
= Demonstration
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- General Publics
- video/mp4
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Access Rights:
Free access
© 2015 James Lincoln
Standard YouTube License
beat frequency, computer lab, sound
Record Creator:
Metadata instance created June 28, 2017 by Eric Ashby
Record Updated:
July 23, 2017 by Bruce Mason
Last Update
when Cataloged:
August 14, 2015
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
J. Lincoln, (2015), WWW Document, (
J. Lincoln, AAPT Films: Easy Beats Physics, (2015), <>.
APA Format
Lincoln, J. (2015, August 14). AAPT Films: Easy Beats Physics. Retrieved September 23, 2017, from
Chicago Format
Lincoln, James. AAPT Films: Easy Beats Physics. August 14, 2015. (accessed 23 September 2017).
MLA Format
Lincoln, James. AAPT Films: Easy Beats Physics. 2015. 14 Aug. 2015. 23 Sep. 2017 <>.
BibTeX Export Format
@misc{ Author = "James Lincoln", Title = {AAPT Films: Easy Beats Physics}, Volume = {2017}, Number = {23 September 2017}, Month = {August 14, 2015}, Year = {2015} }
Refer Export Format

%A James Lincoln
%T AAPT Films: Easy Beats Physics
%D August 14, 2015
%O video/mp4

EndNote Export Format

%0 Electronic Source
%A Lincoln, James
%D August 14, 2015
%T AAPT Films: Easy Beats Physics
%V 2017
%N 23 September 2017
%8 August 14, 2015
%9 video/mp4

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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