Crest - The highest point on a transverse wave, Trough - The lowest point of a transverse wave, Compressions - The parts of a longitudinal wave that are closest together, Rarefactions - The parts of a longitudinal wave that are closest together, Wavelength - The distance between two similar parts of a wave, Wave - A disturbance that transfers energy from place to place, Medium - The material a mechanical wave moves through, Transverse wave - A type of wave where the medium moves perpendicular (vertical) to the direction the energy is moving., Longitudinal wave - A type of wave where the medium moves parallel (horizontal) to the direction the energy is moving. Sound is this type of wave., Electromagnetic waves - A transverse wave of pure energy that can go through both a medium and empty space (vacuum). Light is this kind of wave., Vacuum - Totally empty space (no medium). Sound cannot travel through this, Frequency - How many waves are created every second. Measured in Hertz (Hz), Mechanical Wave - a disturbance in matter that carries energy from one place to another, Period - The time it takes for one complete wave to pass by a point., Amplitude - the distance from the rest position to the crest or trough (height of a wave from the center to the crest or to the trough), Interference - When one wave hits another wave, their amplitudes combine and make a new wave,

Waves Vocabulary

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