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Activity
American Association of Physics Teachers

Com Padre Digital Library: Open Source Physics: Harmonics and Fourier Series

For Teachers 9th - 10th
The downloadable interactive java simulation displays the sum of harmonics through a Fourier series to yield a new wave.
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Article
OpenStax

Open Stax: Catherine Schmidt Jones: Harmonic Series

For Students 9th - 10th
Dealing with the harmonic series, this website goes into come detail concerning pitch, frequency and color. Test your knowledge with several self checking problems.
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Handout
Wolfram Research

Wolfram Math World: Harmonic Series

For Students 9th - 10th
This MathWorld site provides a general overview of the harmonic series.
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Activity
Texas Instruments

Texas Instruments: Up and Down: Damped Harmonic Motion

For Teachers 9th - 10th
In this activity, students' will use a motion detector to record the motion data for a plate bouncing at the end of a light spring, and analyze the data to determine frequency, period and amplitude. They will then find an appropriate...
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Maintaining Balance

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson has students determine center of mass for a series of objects (approximate JENGA blocks), and then to push each level so that it "hangs over" the level below it. Following this,...
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Article
Other

The Equal Tempered Scale & Peculiarities of Piano Tuning

For Students 9th - 10th
The author offers a complete explanation of the physics behind piano tuning and why piano tuning is an intricate process. Illustrations and graphs are included.
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Handout
Other

Math Lair: The Harmonic Series

For Students 9th - 10th
This resource defines the Harmonic Series and gives a proof of its divergence.
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Article
OpenStax

Open Stax: Catherine Schmidt Jones: Tuning Systems

For Students 9th - 10th
Here is a good introduction to the various tuning systems. Topics covered are Tuning Based on the Harmonic Series, Pythagorean Intonation, Mean-tone System, Just Intonation and more. This is also available as a printable pdf file.
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Unknown Type
Northwestern University

North Western University: Series [Pdf]

For Students 9th - 10th
The definition of a series is provided in a PDF document. The document also details the geometric, telescoping and harmonic series, tests for divergence, and series rules.
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Handout
Math Open Reference

Math Open Reference: Integral Test

For Students 9th - 10th
A handy reference guide to the integral test. It provides definitions, examples, and an animation that enhances further explanation. Includes links to related topics.
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Handout
Math Open Reference

Math Open Reference: Series

For Students 9th - 10th Standards
A complete reference guide to a series. It provides definitions, examples, and an animation that enhances further explanation. Includes links to related topics.
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Handout
Math Open Reference

Math Open Reference: Comparison Test

For Students 9th - 10th
Learn about comparison tests with this helpful reference tool. Provides a detailed definition and examples that enhances further explanation. Includes links to related topics.
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Website
Other

Avatar Consultants, Inc: Tuning, Scales, and Temperament

For Students 9th - 10th
A discussion of the composition of complex sounds produced by a musical instrument. Good illustration of how music is applied to physics. Quite a bit of good information, several pages linked together with good definitions as well as...
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Activity
Interactive Mathematics

Interactive Mathematics: Line Spectrum

For Students 9th - 10th
Using Fourier and Harmonic series, the line spectrums of functions are derived and represented on graphs. Several music examples show the connection between harmonics and sound.
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Activity
Interactive Mathematics

Interactive Mathematics: Harmonic Analysis

For Students 9th - 10th
Derived from the Fourier series, the harmonic series can be used to represent even and odd functions. Definitions of second and third harmonics are also provided.
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Handout
Other

Math Pages: Bernoulli Numbers and Harmonic Series

For Students 9th - 10th Standards
This site from Math Pages contains information explaining harmonic series. The information is very in-depth and mathematic, but good factual information is provided. A good overall site.