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WEEK21 PHYSICAL SCIENCE VOCABULARY
1) WAVE Any disturbance that transfers energy through matter or space
2) MEDIUM Material through which waves can travel
3) MECHANICAL WAVE A wave that needs a medium in which to travel
4) TRANSVERSE WAVE A wave the transfers energy in a direction that is perpendicular (at a right angle) to its medium
5) LONGITUDINAL WAVE A wave in which particles vibrate back and forth along the same path that the wave travels
6) COMPRESSION Part of the longitudinal wave where the particles bunch up closer together
7) RAREFACTION Part of a longitudinal wave in which the particles expand and move apart
8) ELECTROMAGNETIC WAVE Disturbance that transfers energy through a field
9) CREST The highest point of a transverse wave
10) TROUGH The lowest point of a transverse wave
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