Very short answer type questions of chapter sound

ASSIGNMENT 2

1. Sound is considered as a mechanical wave. Give reason
2. Differentiate between
(a) wave and a pulse
(b) loudness and Intensity of sound
(c) a tone and a note
(d) Noise and Music
(e) Echo and Reverberation
3. Give a  relation between
(a) loudness and amplitude of a wave
(b) Intensity and Amplitude of a wave
(c) Time period and Frequency of a wave
(d) Velocity, wavelength and frequency of a wave
4. Ceilings of a concert halls are curved. Justify.
5(a). Name the unit in which Intensity of  a sound can be measured.
(b) Identify the characteritics on which loudness and Pitch of a sound depends.