A spectator at an outdoor festival sees a firework explode and hears the bang 2.5 s later. The sound and the light are produced at the same time. The firework exploded at a distance of 825 m from the spectator.
What is the speed of sound calculated from this observation?
206 m/s206\text{ m/s}206 m/s
330 m/s330\text{ m/s}330 m/s
825 m/s825\text{ m/s}825 m/s
2063 m/s2063\text{ m/s}2063 m/s
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.