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10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt Wave Interactions Wave Properties Wave Properties The E. S.Sound
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the angle of incidence
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Angle B
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A wave bends as it crosses a boundary
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refraction
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Which ray best describes the path of the light reflected from the mirror?
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Ray c
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What is the amplitude of this wave?
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2 meters
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When multiple waves combine to make a wave of smaller amplitude?
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Destructive interference
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Which graphs has an amplitude of 10 centimeters?
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Graph C
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Which of the graphs has a period of two seconds?
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Graph C
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Which diagram illustrating two waves “in phase”? AB C
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Diagram A
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The distance from crest to crest
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The wavelength of a wave
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Waves that travel perpendicular to the direction of oscillations?
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A transverse wave
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Number of cycles that occur in one second
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frequency
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How many anti-nodes does this standing wave have?
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Three anti-nodes (Four nodes)
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Reflected sound is called?
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echo
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What is the wavelength of this waves?
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λ = 1 meter
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The unit for frequency
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Hertz
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What is the area pointed to in #2:
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rarefaction
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What types of waves is this:
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Compressional or longitudinal
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The energy of a wave is in its:
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Amplitude
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= a system that shows harmonic motion.
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Oscillator (oscillating system)
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How many complete cycles are there on this graph?
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(4) four
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When motion is faster than the speed of sound?
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supersonic
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Polly is standing on the bottom of a wide canyon, leaning against its wall. She shouts "hello" toward the opposite side of the canyon. If the speed of sound is 340 m/sec and Polly hears her own echo 4 seconds later, how wide is the canyon?
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680 meters 2 seconds (2 seconds x 340 meters/sec)
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Sound waves are always (type of wave)?
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compressional (longitudinal) waves
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What is this wave’s period?
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2 seconds
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The amplitude of a wave of sound is :
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loudness
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