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17 Cards in this Set
- Front
- Back
what is the # of cycles or vibrations per unit of time
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frequency
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what is the time it takes to complete 1 cycle
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period
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how are frequency & period related in a simple harmonic motion?
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waves speed is proportional to frequency & period
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what term describes a wave whose source is some form of repeating motion?
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periodic wave
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one end of a taut rope is fixed to a sliding cart. what type of wave is reflected if the free end is quickly raised and lowered
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pulse wave
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describe constructive interference
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(matter of waves displaced in same direction)amplitudes add together
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describe deconstructive interference
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(matter of waves displaced in opposite directions)amplitudes partially or totally cancel each other
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What wavelength will produce standing waves for a rope w/a length of 100 m?
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100 m/s
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what is a node
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a point in a standing wave that always undergoes complete destructive interference & is stationary
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what is an antinode
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a point in a standing wave, halfway between 2 nodes, at which the largest amplitude occurs
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what is simple harmonic motion?
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vibration is about an equilibrium position in which restoring force is proportional to the displacement
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what is the difference between a periodic wave and a pulse wave
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periodic: wave whose source is some form of periodic motion
pulse: single, nonperiodic disturbance |
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what is the top of the wave called
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crest
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what is the length from the top of the wave to the equilibrium called
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amplitude
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what is the bottom of the wave called?
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trough
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What is it called, one point to another in the exact same place
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wavelength
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explain standing waves
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a wave pattern that results when 2 waves of the same frequency, wavelength & amplitude travel in opposite directions & interfere
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