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4.3 Sound, ultrasound and infrasound

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Question 8

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]
Markscheme

4.3 Sound, ultrasound and infrasound Questions

  1. GCSE
  2. /Physics
  3. /4.3 Sound, ultrasound and infrasound

112 exam-style questions on Edexcel GCSE Physics 4.3 Sound, ultrasound and infrasound, covering 4.3.1 Sound waves, vibrations and the human ear, 4.3.2 Ultrasound and infrasound, 4.3.3 Uses of ultrasound and infrasound, and 4.3.4 Sound waves passing between media. Each one has a worked solution and a mark scheme showing where the marks go.

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