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4.3 Sound, ultrasound and infrasound (physics only)

4.3 Sound, ultrasound and infrasound (physics only)

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Question 1

The normal range of human hearing is from 20 Hz to 20,000 Hz. Sound waves with frequencies above 20,000 Hz are classified as ultrasound.

Suggest two physical or structural reasons why the human ear cannot detect ultrasound waves.

Draft your response as two distinct points.

[2]
Markscheme

4.3 Sound, ultrasound and infrasound (physics only) Questions

  1. GCSE
  2. /Physics
  3. /4.3 Sound, ultrasound and infrasound (physics only)

35 exam-style questions on Edexcel GCSE Physics 4.3 Sound, ultrasound and infrasound (physics only). Each one has a worked solution and a mark scheme showing where the marks go.

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