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17 Cards in this Set

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