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4.3 Sound, ultrasound and infrasound

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Question 18

A homeowner installs an electronic deterrent near a garden pond to protect the fish from cats. This device emits ultrasound.

Explain why this device is effective at deterring cats but has no effect on humans.

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4.3 Sound, ultrasound and infrasound Questions

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

35 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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