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- Any disturbance that transmits energy through matter or space.
- wave
- A substance that a wave travels through.
- medium
- A wave, such as sound, that requires a medium.
- mechanical
- A wave, such as light, that does not require a medium.
- electromagnetic
- A wave that moves a medium up and down.
- transverse
- Top of a transverse wave.
- crest
- Bottom of a transverse wave.
- trough
- A wave that moves the medium back and forth.
- longitudinal
- The crowded together particles in a longitudinal wave.
- compression
- The area in a longitudinal wave where the particles are spread out.
- rarefaction
- A wave that causes a circular pattern and happens where two media meet.
- surface