Need some activities to go along with your unit? A collection of hands-on activities from PBS offers opportunities to add to your electricity, sound, and force units. The electricity activities revolve around building a...

How many of your pupils play an instrument? A musical science lesson will help all of them understand how string instruments work. Young scientists construct a string-and-pulley system to test frequency and pitch. The lesson...

Although their name makes them sound dangerous or toxic, carboxylic acids are found throughout nature in things such as citric acid, vinegar, and even in your DNA. Through detailed readings, discussions, and answering questions...

Sound engineering technicians have opportunities to work in many venues, from radio stations to Broadway shows. Find out about the education needed for this career and read about the life of a sound technician who freelances for live...

Information about the interference of sound and its causes. Well-illustrated and good explanations of the concepts; part of a large hyper-textbook on various physics concepts.

A discussion of refraction and its application to sound waves. Using analogies, graphics and real-life applications, this page and those that accompany it explain why and when sound waves bend.

A tutorial from a hypertext physics course book that discusses reverberation. Illustrated.

Online physics lab experiment in which students use resonating waves inside of a closed-end air column to determine the speed of sound. The form allows students to check their answers and receive immediate feedback.

This hypertext physics course tutorial on nonfocusing surfaces relates various design principles to good auditorium design. Illustrated.

Understand how sound is transmitted through the ear and perceived by the brain in this reference page. Page includes content and an animation.

A reference page including content and animations on longitudinal waves. Understand how sound waves are produced from vibrations in guitar strings to produce longitudinal waves.

This resource explores how vibrating objects produce sound waves. The site contains information and an animation.

The physics tutorial illustrates and explains the distinction between transverse and longitudinal waves. Related links provided.

This site's entry is a discussion of diffraction and its application to acoustics and acoustical design. Exceptional illustrations and great discussion throughout.

This is a glossary of terms and definitions used in Chapter 17: Physics of Hearing from the AP Physics online text.

[Free Registration/Login may be required to access all resource tools.] This guide gives a detailed overview of mechanical waves and the characteristics of waves. Covers wave behavior, including types of interference, resonance, and the...

Pitch is the ear's response to frequency, and here you can get a better understanding of pitch, its measurement and the perception of pitch.

Informative article on the human ear. Describes the parts and function of the ear. Explains how the ear functions when listening to music.

Learn the difference between an echo and a reverberation on this reference page. Page includes an animation to show the difference.

A brief explanation of what ultrasonic sound is and the devices that produce ultrasonic sound can be found here at the Georgia State University. Scroll down the page to read how ultrasonic sound is important to bats and towards the...

This hypertext physics course page illustrates and explains the Doppler effect. Users perform practice calculations for frequency shifts using the Doppler equation.

Explains what happens to a wave when it hits a fixed end or a free end.

Physics lab definition of air fiction. Part of a hypertext physics course on sound.

Two wave graphs depicting a sine wave and relating the various characteristics (wavelength, amplitude, frequency, and period) of a wave to each other. The site includes an interactive JavaScript form in which the visitor enters one...