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4.3 Sound, ultrasound and infrasound

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Question 32

A blue whale makes a call that includes infrasound. A hydrophone (an underwater microphone) 45 km from the whale detects the call.

Sound travels through seawater at 1500 m/s.

Calculate the delay between the whale making the call and the hydrophone detecting it.

[3]
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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