The particles of the medium set neighbouring particles into motion, but they do not move forward themselves.
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A wave is a disturbance that moves through a medium by setting neighbouring particles into motion.
The disturbance created by the source of sound travels through the medium to carry the sound to your ear, not the particles of the medium themselves.
A particle of the medium in contact with the vibrating object is displaced from its equilibrium position and exerts a force on the adjacent particle, causing it to be displaced as well.
No, the particles of the medium do not travel all the way from the vibrating object to the ear.