Q: Fact 1: Hitting an object causes the particles in that object to vibrate. Fact 2: Geoffrey stops to hit a gong in different places, testing the concept of resonance. Given the two facts above, what does gong's particles vibrating cause?

Options:
a). particle explosion.
b). friction.
c). silence.
d). ice forming.
e). heat energy.
f). Energy..
g). energy.
h). resonance.
A:
h).