Question

write three characteristics of sound wave

Answer 1

hello mate

*it is of two types
-melodius sound
when we like some sound and also it feels us in heaven called melodius sound.
-harsh sound
when the sound not prefer by brain and heart it called as harsh sound.

may be
it helped you...

Answer 2

(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