Sound is a longitudinal wave that travels through compressible media such as air.
Describe the motion of air particles as a sound wave passes through the air.
A spectator at a fireworks display is standing at a distance ddd from the launch area. She sees a firework explode in the night sky, and then hears the bang some time later.
Suggest a suitable device for measuring the time interval between seeing the flash and hearing the bang.
The measured time interval is 2.8 s2.8\text{ s}2.8 s. Taking the speed of sound in air as 330 m/s330\text{ m/s}330 m/s, calculate the distance ddd from the explosion to the spectator.
State the range of audible frequencies for a healthy human ear, making sure to include the unit.
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.