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25 Cards in this Set
- Front
- Back
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wave
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any disturbance that transmits energy
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medium
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substance through a which a wave can travel
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mechanical wave
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waves requiring a medium
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electromagnetic waves
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waves that do not require a medium
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examples of mechanical waves
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seismic, ocean, sound
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examples of electromagnetic waves
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radio, light, x ray, tv, microwave
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transverse wave
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particles travel up and down, perpendicualar to the wave
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logitudinal wave
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particles vibrate back and forth along the path of the wave
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crest
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highest point of a transverse wave
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trough
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lowest point of a transverse wave
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compression
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part of a longitudinal wave where the particles are crowded
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rarefaction
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part of a longitudinal wave where the particles are less crowded
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amplitude
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maximum distance a wave travels from its rest point
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wavelength
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distance between two adjacent crests or troughs
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frequency
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number of waves produced in a given amount of time
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Unit for frequency
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hertz
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wave speed
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the distance a wave travels in a given amount of time
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reflection
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a wave bounces back after striking a barrier
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refraction
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the bending of a wave as it passes from one medium to another
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diffraction
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bending of waves around a barrier or through an opening
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interference
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two waves overlap
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constructive interference
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two crests overlap and the reulting crest is larger than the two
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destructive interference
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a crest and trough of two different waves overlap cancelling each other out or producing a smaller amplitude
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standing wave
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a stationary wave pattern due to interference
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surface wave
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combination of a transverse and longitudinal wave, particles move in circles
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