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5 Cards in this Set
- Front
- Back
- 3rd side (hint)
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If you are in front of a fast moving train, will the pitch be higher or lower than the original sound coming from the train?
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Higher.
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The waves in front of a moving object will be compressed.
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If a fast moving ambulance passes you, will the pitch of the siren be higher or lower than the original sound of the siren?
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Lower.
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The sound waves will be further apart as they reach you after the ambulance has passed.
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If you are in a car moving fast toward a stationary tornado siren, will the sound be affected by the doppler effect?
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Yes--the pitch will be higher.
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Can the siren tell if you are moving or if it is moving? No.
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Explain how the wave produced by a speed boat shows the doppler effect.
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The wave in front of the boat is compressed; the wake behind the boat is spread way out.
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Think about compressed waves--where would they be relative to the boat?
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If sound waves are closer together, will the frequency of the sound be higher or lower?
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Higher.
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The crests of waves that are closer together will have a higher pitch than waves that are further apart. How is pitch related to frequency?
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