Sound waves are characterized by the motion of particles in the medium. They are classified as mechanical waves because they require a medium for propagation, and the energy of the wave is transferred through the mechanical interactions between particles.

No, the particles of the medium do not move forward themselves during the propagation of sound. Instead, they oscillate back and forth about their equilibrium positions, transferring energy to neighboring particles.

The disturbance caused by a source of sound propagates through the medium by setting neighboring particles into motion, leading to a chain reaction where each particle affects the one next to it.

When a source of sound creates a disturbance in a medium, it sets neighboring particles into motion, which in turn disturbs adjacent particles.

When an object vibrates, it displaces particles of the medium from their equilibrium positions, causing them to oscillate. These oscillating particles then transmit the sound energy by exerting forces on adjacent particles.