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3 cards from this section. Quick, good the night before a test.
What is sound?
Think about how you hear music.
What unit measures loudness?
What do we use to measure sound intensity?
What determines the pitch of a sound?
Higher frequency = higher pitch.
True or False: Sound can travel in a vacuum.
Think about space.
You are at a concert where the sound reaches you at 340 m/s in air. If the concert is 1 km away, how long does it take for the sound to reach you?
Use the basic time formula involving speed and distance.
Explain how sound technology can improve everyday applications at home or school.
Think about different devices that use sound to inform you.
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