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Question 135

A spectator at a fireworks display sees a firework explode in the distance and hears the bang 2.5 seconds later. The light and the sound are created at the same time. The firework is 850 metres away from the spectator. What is the speed of sound calculated from this observation?

A

170 m/s170\text{ m/s}170 m/s

B

340 m/s340\text{ m/s}340 m/s

C

425 m/s425\text{ m/s}425 m/s

D

2125 m/s2125\text{ m/s}2125 m/s

Markscheme

Sound Questions

  1. IGCSE
  2. /Physics
  3. /Sound

295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.

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