Sound Energy
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1. Recognize that sound is produced by vibrating objects and requires a medium through which to travel. Relate the rate of vibration to the pitch of the sound.
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· Use tuning forks to demonstrate the relationship between vibration and sound.
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· Design and construct a telephone (prototype) using a variety of materials, e.g., paper cups, string, tin cans, and wire. Determine which prototype works best. Discuss possible reasons. (T/E 1.1, 1.2, 2.2, 2.3)
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