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Waves Unit

Waves unit vocabulary terms and definitions.

TermDefinition
Wave is a rhythmic disturbance that carries energy through matter and space.; carries energy from one place to another. Waves are a form of energy.
Wavelength distance of a “repeating unit”, also called a cycle; measures how long a wave is
Amplitude measures DISPLACEMENT (height of a wave) size of the disturbance; distance between “rest & crest” or “rest & trough”
Trough bottom, or lowest point of a wave
Crest “peak” or top of a wave
Speed how fast the wave travels (velocity); measured by multiplying the wavelength by the wave frequency, v = w x f
Frequency how often number of wavelengths that pass any point per second number of wavelength
Medium matter such as solid, liquid, or gas and is what a wave is carried by; ex/ ocean waves move through water
Electromagnetic wave the energy moves through disturbances in the electromagnetic field. Does not require a medium to travel through; energy is transferred by way of radiation.
Mechanical wave the energy is transferred by vibrations of medium. Three types of mechanical waves: transverse, longitudinal, and surface waves
Transverse wave vibration is perpendicular to the direction of the motion of the wave, the vibration is at 90 degrees (right angles) to the wave pulse
Longitudinal (compression) wave vibration is in the same direction (parallel) as wave pulse (parallel to wave pulse)
Surface wave vibration is circular Ex/ Ocean waves; ground surface waves
Created by: user-1748754
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