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36 Cards in this Set
- Front
- Back
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periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium
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wave
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a physical environment in which a wave travels
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medium
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examples of waves that need a medium, or media
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sound waves, earthquake waves, and water waves
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waves that don't need a medium to travel through
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electromagnetic waves
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examples of electromagnetic waves
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visible light, microwaves, TV and radio waves, and X rays
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particles vibrate perpendicular to the direction the wave is traveling
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transverse wave
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particles vibrate back and forth along the path that the wave moves
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longitudinal waves
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made of crests and troughs
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transverse waves
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made of compressions and rarefractions
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longitudinal waves
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how high or low the wave is from its rest position
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amplitude
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higher ___ carries more energy than small ___
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amplitude
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the space between two crests or two troughs
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wave lengths
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the # of waves produced in a given amount of time
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frequency
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shorter ____ carry more energy than longer ___
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wave lengths
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measured in hertz, Hz, (1 Hz = 1 wave per second
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frequency
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if ___ are =, high ____ waves carry more energy than low ____ waves
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amplitude; frequency
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speed at which a wave travels
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wave speed
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frequency and wave length are ____ related; if one is doubled, the other is cut in 1/2
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inversely
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the wave speed in a ___ ____ is the same no matter what the wave legth is
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certain medium
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happens when a wave bounces back after hitting a barrier
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reflection
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the bending of a wave as the wave passes from one medium to another at an angle; causes rainbows
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refaction
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the bending of waves around a barrier or through an opening
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diffraction
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amount of _____ depends on wave length and the size of the barrier or opening
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diffraction
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result of two or more waves overlapping
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interference
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a crest will overlap a crest, trough overlap a trough, when they combine they form a new wave with a larger amplitude
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condtructive interference
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crest of one wave overlaps a trough of another wave and the new wave formed is smaller
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destructive interference
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looks like it's standing still but it's actually going in both directions
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standing wave
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happens when a vibrating at or near the resonance frequency of a 2nd object makes the 2nd object vibrate
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resonance
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the speed of ___ depends on the medium; and tempature affects also affects it
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sound
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how low or high the sound seems to be
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pitch
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___ is related to the frequency of sound waves
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pitch
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high ___ = high frequency
low ___ = low frequency |
pitch
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apparent change in the frequency of a sound caused by the motion of the listener or the source of the sound
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dopper effect
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the larger the ____, the louder the sound
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amplitude
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the most common unit to express loudness is
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decibel (dB)
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reflected sound wave
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echo
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