What makes a low pitch sound?
(a) Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
(b) Draw labelled diagrams to represent sound of (a) low pitch, and (b) high pitch, of the same loudness.
A bird makes a high-pitched sound whereas a lion makes a low-pitched roar. So, the frequency of sound made by lion is ______ that of bird.