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edited by the Mindset Network
published by the ReVisions Productions
This 9-minute video uses an oscilloscope to demonstrate how the loudness of a sound is related to its wave amplitude and how pitch is related to frequency. The author explicitly clarifies a concept that is commonly misunderstood: although the wave pattern produced by the oscilloscope looks like a transverse wave, sound is NOT transverse-it is longitudinal. The instrument detects compressions (high pressure areas) and rarefactions (low pressure areas) in the longitudinal wave and translates them into an electrical signal to produce a graph of Distance Vs. Time. The video then explains how the human ear is able to hear different frequencies of sound, which we perceive as varying pitches. Professional scripting and animation serve to provide a deeper learning experience than traditional lecture demonstrations.
Editor's Note: This video is part of a larger collection of resources produced by Mindset Learn, a nonprofit organization. Each video was created under the supervision of the University of Johannesburg.
Subjects Levels Resource Types
Oscillations & Waves
- Acoustics
= Pitch
= The Ear
- Wave Motion
= Longitudinal Pulses and Waves
= Wave Properties of Sound
- High School
- Middle School
- Instructional Material
= Tutorial
- Audio/Visual
= Movie/Animation
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- Activity
- New teachers
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Free access
Does not have a copyright, license, or other use restriction.
Waves tutorial, amplitude, oscilloscope, wave frequency
Record Cloner:
Metadata instance created February 5, 2018 by Caroline Hall
Record Updated:
February 5, 2018 by Caroline Hall
Last Update
when Cataloged:
September 28, 2010

Next Generation Science Standards

Disciplinary Core Ideas (K-12)

Wave Properties (PS4.A)
  • A simple wave has a repeating pattern with a specific wavelength, frequency, and amplitude. (6-8)

Crosscutting Concepts (K-12)

Structure and Function (K-12)
  • Complex and microscopic structures and systems can be visualized, modeled, and used to describe how their function depends on the shapes, composition, and relationships among its parts, therefore complex natural structures/systems can be analyzed to determine how they function. (6-8)
Scientific Knowledge Assumes an Order and Consistency in Natural Systems (1-12)
  • Science assumes that objects and events in natural systems occur in consistent patterns that are understandable through measurement and observation. (6-8)

AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4F. Motion
  • 6-8: 4F/M4. Vibrations in materials set up wavelike disturbances that spread away from the source. Sound and earthquake waves are examples. These and other waves move at different speeds in different materials.
  • 6-8: 4F/M7. Wave behavior can be described in terms of how fast the disturbance spreads, and in terms of the distance between successive peaks of the disturbance (the wavelength).
  • 9-12: 4F/H6ab. Waves can superpose on one another, bend around corners, reflect off surfaces, be absorbed by materials they enter, and change direction when entering a new material. All these effects vary with wavelength.
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Record Link
AIP Format
(ReVisions Productions, 2010), WWW Document, (https://www.youtube.com/watch?v=h5kPzCQYhyY).
Mindset Learn: Loudness and Pitch, (ReVisions Productions, 2010), <https://www.youtube.com/watch?v=h5kPzCQYhyY>.
APA Format
Mindset Learn: Loudness and Pitch. (2010, September 28). Retrieved February 18, 2018, from ReVisions Productions: https://www.youtube.com/watch?v=h5kPzCQYhyY
Chicago Format
Mindset Network. Mindset Learn: Loudness and Pitch. ReVisions Productions, September 28, 2010. https://www.youtube.com/watch?v=h5kPzCQYhyY (accessed 18 February 2018).
MLA Format
Mindset Learn: Loudness and Pitch. ReVisions Productions, 2010. 28 Sep. 2010. Mindset Network. 18 Feb. 2018 <https://www.youtube.com/watch?v=h5kPzCQYhyY>.
BibTeX Export Format
@misc{ Title = {Mindset Learn: Loudness and Pitch}, Publisher = {ReVisions Productions}, Volume = {2018}, Number = {18 February 2018}, Month = {September 28, 2010}, Year = {2010} }
Refer Export Format

%T Mindset Learn: Loudness and Pitch
%D September 28, 2010
%I ReVisions Productions
%U https://www.youtube.com/watch?v=h5kPzCQYhyY
%O text/html

EndNote Export Format

%0 Electronic Source
%D September 28, 2010
%T Mindset Learn: Loudness and Pitch
%I ReVisions Productions
%V 2018
%N 18 February 2018
%8 September 28, 2010
%9 text/html
%U https://www.youtube.com/watch?v=h5kPzCQYhyY

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Citation Source Information

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