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Additional Resources for Teachers

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Part 1: What Is Sound?

Activity 1B: Sound—From Production to Perception

How Speakers and Microphones Work

These sites provide additional information about different types of speakers and microphones.

http://electronics.howstuffworks.com/speaker3.htm

www.mediacollege.com/audio/microphones/how-microphones-work.html

http://electronics.howstuffworks.com/gadgets/audio-music/question3091.htm

Part 2: Exploring Waves

Activity 2C: Making Waves

Exploring Waves in Other Media

These sites include instructions or suggestions for demonstration and student investigations of waves in other media.

Simulated waves on a string: http://phet.colorado.edu/teacher_ideas/view-contribution.php?contribution_id=131

Standing waves in a variety of media: http://www.practicalphysics.org/standing-waves-1.html