Question

list any three characteristics of sound..
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Answer 1

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.

Answer 2

The three characteristics of sound are

1. Pitch :- It depends upon the frequencies of the sound wave. A note has a higher pitch when the frequency is high and a note of low frequency has a low pitch.

2. Loudness :- The loudness of sound depends on the amplitude of the vibration. It will be louder when the amplitude is high. 

3. Quality or Timbre :- Different sources of sound produce different timbre which helps us to distinguish between different types of sound.