Sound

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Check your understanding: A sound wave is different than a light wave in that a sound wave is a. produced by a vibrating object and a light wave is not. b. not capable of traveling through a vacuum. c. not capable of diffracting and a light wave is. d. capable of existing with a variety of frequencies and a light wave has a single frequency.
When a tuning fork vibrates, it creates areas of high pressure (compressions) and low pressure (rarefactions). As the tines of the fork vibrate back and forth, they push on neighboring air particles. The forward motion of a tine pushes air molecules horizontally to the right and the backward retraction of the tine creates a low-pressure area allowing the air particles to move back to the left.
Page 1 and 2: Sound
Page 3 and 4: If a tree falls in a forest, and th
Page 5: Review: Sound is a mechanical wave
Page 9 and 10: Check your understanding A sound wa
Page 11 and 12: Frequency of Sound Example A guitar
Page 13 and 14: Frequency of Sound • The human ea
Page 15 and 16: Intensity Intensity: the rate at wh
Page 17 and 18: Intensity is caused by the Amplitud
Page 19 and 20: The Decibel Scale On the decibel sc

Sound

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