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S8P4.a
Term | Definition |
---|---|
wave | a periodic disturbance in a solid,liquid,or gas as energy is transmitted through a medium. |
medium | a physical environment in which phenomena occur. |
mechanical wave | a wave that needs a medium in which to travel. |
transverse wave | a wave in which the particles of the medium move perpendicularly to the direction the wave is traveling. |
longitudinal wave | a wave in which the particles of the medium vibrate parallel to the direction of wave motion. |
compression | part of the longitudinal wave where the particles bunch up closer together. |
rarefaction | part of the longitudinal wave in which the particles expand to move apart. |
electromagnetic wave | a wave that consist of electric and magnetic fields that vibrate at right angles to each other. |