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Question 16

An environmental monitoring station records the dominant frequency of three sounds.

RecordingFrequencyCategory
large pumping machine9 Hz
calibration tone750 Hz
animal call42 kHz42\ \text{kHz}42 kHz

Use the frequencies to decide whether each recording is infrasound, audible sound or ultrasound. Write your answers in the last column.

[2]
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4 Waves Questions

  1. GCSE
  2. /Physics
  3. /4 Waves

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