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Waves Vocabulary
| Term | Definition |
|---|---|
| absorb | to take in |
| amplitude | the height of a wave, measured from equilibrium to the top of a crest or the bottom of a trough |
| approach | come near or nearer to something |
| audio | related to sound, particularly when recorded, transmitted, or reproduced |
| boundary | A dividing line between two areas or spaces |
| classified | Arranged in classes or categories based on shared characteristics |
| compression | The smushed part of a longitudinal wave |
| crest | The highest point in a transverse wave |
| electromagnetic wave | A wave that does not require a medium, like light or other waves in the EM spectrum |
| emit | To make or produce something, especially a wave |
| frequency | How often something repeats each second |
| incident ray | incoming light |
| longitudinal wave | A wave that has compressions and rarefactions |
| mechanical wave | A wave that can’t travel in a vacuum (requires a medium) |
| medium | The material a wave travels through |
| normal line | An imaginary line perpendicular to a mirror or other surface |
| oscillate | To move in a repeated pattern, could be back and forth or up and down. |
| parallel | In the exact same direction. Things moving in parallel will never intersect. |
| period | How long it takes for something to repeat, the amount of time for one cycle |
| perpendicular | At a 90 degree angle |
| propagate | to travel through space or a material |
| property | a special quality or characteristic of something |
| rarefaction | The spread-out part of a longitudinal wave |
| reflected ray | Light that bounces off a surface, same angle as incident ray. |
| refracted ray | Light that bends toward or away from normal line when entering a new medium |
| substance | A material or particular type of matter |
| transmit | To cause something to pass from one place to another |
| transverse wave | A wave that has crests and troughs |
| trough | The lowest point in a transverse wave |
| vacuum | A place with no molecules, like outer space |
| wave speed | How fast a wave moves from point A to point B. |
| wavelength | The distance it takes for a wave to repeat; crest to crest, or trough to trough. |
| constructive interference | when two waves combine to form a larger wave |
| destructive interference | when two waves combine to form a smaller wave |
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