Question

the sound waves travel.fast

Answer 1

yeah they do but light waves are faster than them.

speed of light waves = $3 X 10^{8}ms^{-1}$

and speed of sound = $343ms^{-1}$

Answer 2

Sound is local disturbance produced by collisions between the particles.

Speed of the sound is not always the same and sound is a vibration of kinetic energy that is especially passed from a molecule to molecule.

When the sound gets closer the molecules, then tighter their bonds as well as less time it takes for them to pass sound to other directions.