Waves that vibrate or oscillate perpendicular to the direction of energy transfer
* Particle oscillations ⟂ to energy transfer’s direction
* Energy transferred in same direction as wave motion
* Energy transferred but particles of the medium are not
* Particles of the medium are not displaced and not transferred (although they move, they are not displaced because the particles move back and forth along the same axis/line so always return to their original position → hence the displacement of 0)
* Waves can move in solids and on the surface of liquids, but cannot move inside liquids or gases
* Some transverse waves (e.g. electromagnetic waves) can move in solids, liquids, gases, and vacuum