Question

state 3 characteristic of sound . list 4 factors that sound depends

Answer 1

(i) Pitch
(ii) Quality
(iii) Loudness.
 
 
(i) Pitch depends on the frequency of the sound waves produced by the source.
 
(ii) Quality (or Timbre) of the sound depends on wave form.
 
(iii) Loudness depends as the following:  
 
(a) Loudness is directly proportional to the square of the amplitude.
(b) Loudness is inversely proportional to the square of the distance.
(c)  Loudness depends on the surface area of the vibrating body.
(d)  Loudness depends on the density of the medium.
(e)  Loudness depends on the presence of resonant bodies

Answer 2

Sound waves are often simplified to a description in terms of sinusoidal plane waves, which are characterized by these generic properties:

Frequency, or its inverse,
wavelength
.Amplitude,
sound pressure or Intensity.
Speed of sound.
Direction.


Loudness of a sound depends on the amplitude of the vibration producing that sound. Greater is the amplitude of vibration, louder is the sound produced by it. The amplitude of the sound depends upon the force with which an object is made to vibrate. The loudness of a sound also depends on the quantity of air that is made to vibrate.