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4.3 Sound, ultrasound and infrasound

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Question 45
H

A sonar transmitter is 4.0 m below the water surface. An echo from the seabed returns 0.080 s after a pulse is sent. The sound speed is 1500 m/s.

What is the depth of the seabed below the water surface?

[1]
A

64 m64\ \mathrm{m}64 m

B

56 m56\ \mathrm{m}56 m

C

120 m120\ \mathrm{m}120 m

D

124 m124\ \mathrm{m}124 m

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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