Frequency?10points?

Question

Hi, so answer this:

When the frequency of sound waves matches the natural frequency of an object, what occurs?

10 Points to the best answerrrr!!

Answer 1

the sound is canceled out?

Answer 2

It sets up a resonant vibration in the object, which may under certain circumstances cause the object to shatter (think crystal wineglass).

Answer 3

Resonance.  Then if the sound increases enough, the object fractures, usually into parts which have a different resonant frequency.

Answer 4

I wish I payed more attention in school...lol