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S8P4.a
| Term | Definition |
|---|---|
| wave | a periodic disturbace in a solid, liquid, or gas as energy is transmitted through a medium |
| medium | a physical enviroment in which phenomena |
| mechanical wave | a wave that needs a medium in which travel |
| longitudinal wave | a wave in which the particles of the medium move perpendiculary to the direction the wave is traveling |
| compression | part of the longitudinal wave where the particles bunch up closer together |
| rarefraction | part of the longitudinal wave in which the particles expand and move apart |
| electromagentic wave | a wave that consists of electric and magnetic fields that vibrate at right angles to each other |