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Waves
| Term | Definition |
|---|---|
| Wave | Repeating disturbance or movement that transfers energy through matter or space |
| Medium | The matter the waves travel through |
| Transverse Wave | In this type of wave, matter in the medium moves back and forth at right angles to the direction that the wave travels; has crests and troughs |
| Compressional Wave | In this type of wave, matter in the medium moves back and forth along the same direction that the wave travels. |
| Crest | Alternating high points in a transverse wave |
| Trough | Alternating low points in a transverse wave |
| Rarefaction | Less-dense regions of a compressional wave |
| wavelength | The distance between one point on a wave and the nearest point just like it. |
| frequency | The number of wavelengths that pass a fixed point each second. |
| period | Amount of time it takes one wavelength to pass a point. |
| amplitude | Related to the energy transferred by a wave; The greated it is, the more energy the wave transfers. |
| Refraction | The bending of a wave caused by a change in its speed as it moves from one medium to another |
| Diffraction | Occurs when an object causes a wave to change direction and bend around it. |
| interference | When two or more waves overlap and combine to form a new wave |
| standing wave | A special type of wave pattern that forms when waves equal in wavelength and amplitude, but travel in opposite directions, continuously interfere with each other. |
| resonance | The process by which an object is made to vibrate by absorbing energy at its natural frequencies |