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Unit 7 Lesson 3
Waves- Important vocab to know from Unit 7 Lesson 3
| Term | Definition |
|---|---|
| compression | This is the spot on a longitudinal wave where the oscillators are squeezed together |
| rarefaction | This is the spot on a longitudinal wave where the oscillators are spread apart |
| amplitude | The maximum distance of the wave from the resting position. Standard unit for it is meters. |
| wavelength | The length of one "cycle" of a wave. Standard unit for it is meters. |
| frequency | The number of "cycles" or wavelengths that pass a fixed point in one second. Standard unit for it is Hz. |
| speed of a wave | The distance that a wave travels in one second. Standard unit for it is m/s. |
| longitudinal wave | In this type of wave, the oscillators that make up the wave move parallel to the direction that the wave travels. |
| transverse wave | In this type of wave, the oscillators that make up the wave move perpendicular to the direction that the wave travels. |
| surface wave | In this type of wave, the oscillators that make up the wave move in circular motion.This always occurs where two mediums meet. |
| oscillator | This is one object moving in harmonic motion. Many of these close together make up a mechanical wave. |
| mechanical wave | This type of wave requires a medium to move through, because it travels by sending a disturbance through oscillators. |
| electromagnetic wave | This type of wave does NOT require a medium to move through. |
| medium | This is the name for whatever substance a wave travels through. |
| wave | This is a traveling disturbance that carries energy from one place to another. |
| crest | This is what the peak of a transverse wave is called. |
| trough | This is what the lowest point on a transverse wave is called. |