Define the following:

a) sound

b) vibration

c) sound waves

d) frequency

A sound is like a vibration that travel through the air, or another medium and can be heard when they Reach's a person or animal' s ear ... the definition of vibration is like movement back and forth, or an emotion sensed by another person. a Sound waves is a way of compression and rarefaction by which sounds is propagated in an elastic medium such as air ... a Frequency is like the rate at which something occurs or it's repeated over a particular period of time or in a given sample ...