State the range of frequencies of sound that can be heard by a healthy human ear.
Sound waves traveling through air are longitudinal waves consisting of compressions and rarefactions. Describe what is meant, in terms of the behaviour of air molecules, by: (i) a compression, (ii) a rarefaction.
State the effect on what is heard by a listener when there is: (i) a decrease in the amplitude of a sound wave, (ii) an increase in the wavelength of a sound wave.
A student performs an experiment to determine the speed of sound in air.
The student stands facing a tall vertical cliff and claps. The student hears the echo 1.3 s1.3\text{ s}1.3 s later.
The student then walks a further distance of 198 m198\text{ m}198 m directly away from the cliff and claps again. The echo is now heard 2.5 s2.5\text{ s}2.5 s later.
Calculate the speed of sound in air obtained from this experiment.
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.