Summary
Bill shows that sound is vibration traveling as waves. Drums, tuning forks, and a few loud demos connect vibrating objects to the sounds you hear.
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Teaching resources
Discussion questions
Discussion
Bill shows that sound is vibration traveling as waves.
- What has to happen for something to make a sound?
- Why can you sometimes feel a loud sound, not just hear it?
- What changes when a sound gets higher or lower?
Quick work-a-long
Vocabulary: vibration, wave, pitch.
Try it: Stretch a rubber band, pluck it, and describe how the vibration changes the sound.