longitudinal wave physics definition
Light wave-A light wave is a special type of electromagnetic wave that has a frequency in the visible spectrum. Longitudinal-A longitudinal wave is a wave where the disturbance travels in the same direction as the wave. Sound waves are longitudinal. Mechanical Waves-A mechanical wave is a wave that must travel through some sort of matter called a medium. Mechanical waves cannot travel through a vacuum like outer space. Medium-The medium is the matter that a wave travels through.