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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. |