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Q & A: Colliding objects make sound

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Most recent answer: 05/16/2013
Q:
Why a sound is produced when two objects collide each other.Does sound has particle nature light light.
- Prudhvi Raj Borra (age 16)
Machilipatnam,Andhra Pradesh,India.
A:
Hello Prudhvi,  I notice you are a frequent visitor to our site.
When two objects collide energy is lost.  Part of this energy goes into internal vibrations of the objects. It is these vibrations coupling to the surrounding air that you hear as sound.    Sound waves in air are not particle-like but are described by ordinary classical physics considerations of coherent motion of air molecules.

LeeH

(published on 05/16/2013)

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