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25 Cards in this Set
- Front
- Back
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what is the definition of wavelength?
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distance a wave moves during one complete vibration
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what is the definition of amplitude?
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half the distance from the trough to crest
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what is wavelength affected by?
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frequency and wave speed
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wavelength is __________ proportional to velocity
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directly
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wavelength is _________________ proportional to frequency
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inversely
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what is the wave equation...finding speed of sound?
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v equals wavelength times frequency
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what is the doppler effect?
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relative to the observer, just when the frequency of the waves is more or less than the disturbances per second
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what does the speed of a wave depend on
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medium
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what does the energy of a wave depend on
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amplitude
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what happens to the frequency when the wavelength increases?
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decreases
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which waves require a medium
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mechanical waves
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which waves do not require a medium
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electromagnetic waves
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what is a surface wave
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transverse mechanical wave
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what is a wave that travels through empty space
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electromagnetic
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what is a traveling wave which causes matter to move at right angles to the direction of the wave
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transverse
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what is the distance the waves travels during one complete vibration
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wavelength
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points of total destructive interference
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nodes
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points of total constructive interference
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anti-nodes
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what is a decrease in the amplitude of the wave due to energy lost in overcoming friction and the spreading out of the wave front?
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damping
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waves travel __________ in shallow water than in deep
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slower
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what happens when a wave passes into a new medium
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only it's frequency stay the same
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what d sound waves consist of
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compressions and rarefactions
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what are sounds of higher frequency called
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ultrasonic
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sounds of lower frequencies
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infrasonic
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two practical applications of doppler effect
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car radar, storm tracker
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