Physics for IGCSE & O level - Waves And Sounds (Section 6 - No. 21)
What is the difference between a sound wave and a light wave?
Sound waves are electromagnetic, and light waves are mechanical.
Sound waves can travel through a vacuum, and light waves cannot.
Sound waves are longitudinal, and light waves are transverse.
Sound waves travel faster than light waves.
Explication
Sound waves are longitudinal, and light waves are transverse.