Question

Compare sound of a baby with sound of a man. Even if both have same loudness, how they differ. Explain the factor which cause difference. [3 MARKS]

Answer 1

Each point: 1 Mark

1. Frequency of the voice of a child is higher than that of an adult.
2. The frequency determines the shrillness or pitch of a sound.
3. If the frequency of vibration is higher we say that the sound is shrill and has a higher pitch. If the frequency of vibration is lower, we say that the sound has a lower pitch.