Sound waves travel through different mediums, including solids, in the form of longitudinal waves. In longitudinal waves, particles of the medium move in the same direction as the wave, creating compressions and rarefactions.
These waves travel by the vibration of particles along the direction of the wave propagation, allowing sound to move through solids, liquids, and gases.
While transverse waves are common in water or light waves, sound in solids is primarily transmitted as longitudinal waves.