What happens to sound when it resonates?

Question

Please include sources.

Thanks.

Answer 1

It is when something oscillates (i.e. moves back and forth) with a maximum amplitude at a specified frequency. Normally this frequency will be the 'natural frequency' of whatever object is being resonated.


See links.
http://en.wikipedia.org/wiki/Resonate
http://en.wikipedia.org/wiki/Acoustic_resonance