An observer stands 510 m away from a fireworks display. The observer hears the sound of an explosion 1.5 s after seeing the flash of light from the explosion. Using this information, what is the speed of sound in air?
170 m/s170\text{ m/s}170 m/s
340 m/s340\text{ m/s}340 m/s
510 m/s510\text{ m/s}510 m/s
765 m/s765\text{ m/s}765 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.