Test: MCAT Physical

1.

You are jogging on the sidewalk at a rate of . A police car behind you is patrolling at a rate of when it turns on its siren. If the siren has a frequency of , is the frequency you perceive higher or lower than the frequency emitted?

Higher because the overall distance between you and the siren is decreasing

Lower because the overall distance between you and the siren is increasing

Higher because the siren is traveling the same direction as you

Lower because you are running slower than the police car

Neither higher nor lower because the doppler effect only affects sounds at lower frequencies

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