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20 Cards in this Set
- Front
- Back
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The formula for velocity is?
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Frequency multiplied by wavelength.
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What causes a wave?
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Vibration
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When a wave strikes a boundary, what two things happen?
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Reflection,Transmission.
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Unlike sound which needs this to be audible. Light does not need a ______ to travel through.
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medium
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The formula for frequency is?
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F=1/T
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The distance from one crest in a wave to the next crest is called the _____ -______.
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Wave lenth
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The change in pitch due to a moving wave source is called the____-_____.
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Doppler effect
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The ______ is the frequency at which a material tends to vibrate when it is disturbed.
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Natual Frquency
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The velocity of a wave is mathematically related to two of it's other characteristics _______ and _______.
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Frequency and Wave length
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The ______ is the height of the wave.
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Amplitude
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Waves carry ____ from one place to another.
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Energy
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What unit do we use to measure the loudness of sound?
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Decibels
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What do sound waves travel through in order to be audible.
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Sound waves must travel through a medium in order to have audible sound.
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Loudness
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strongly audible; having exceptional volume or intensity
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Disturbance of a wave is?
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Displacement from it's rest position.
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Transverse Waves
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Oscillations up and down
Oscillations are at a right angle to the direction of travel. |
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Longitudinal Waves
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Oscillations backwards and forwards
Oscillations are at the direction of travel. |
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Period..
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the time for one oscillation equal to 1/frequency.
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Medium..
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a physical environment in which phenomena occurs.
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A section of longitudinal wave where the particles are very close together is called...
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compression
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