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PHY1020-Chapter 7

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Question
Answer
Beats measure:   show
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show With slower wave velocity.  
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The fastest earthquake wave is the:   show
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The slowest earthquake wave is the:   show
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show 2.  
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When two different waves pass through an opening of the same size, which one will spread more? Smaller wavelength Larger wavelength Higher frequency Lower frequency   show
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The fastest sound wave is:   show
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show The time between the P and S waves.  
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Sound travels fastest in:   show
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When an opening gets smaller, a wave that passes through it:   show
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The very center of the Earth is:   show
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show P wave.  
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Which of the following statements about earthquakes is true?   show
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The L wave is often the most damaging because:   show
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An earthquake wave does its worst damage when it reaches an area that:   show
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Landfill is dangerous because:   show
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When there is an atmospheric inversion, sound tends to:   show
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The ocean sound channel:   show
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Sound tends to bend toward the side with:   show
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show At least one of the pianos is out of tune (the notes are at the wrong frequency.)  
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We know that the inner part of the Earth is liquid because:   show
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A magnitude 9 earthquake, compared to a magnitude 8 earthquake:   show
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show 50 miles.  
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show Halved.  
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Beats demonstrate that:   show
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show 1000 feet per second.  
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The speed of sound in air:   show
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Sounds waves are:   show
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show Upward, toward the sky.  
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show The air near the ground is cool and the air above it is warm.  
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Because of evaporation, the air above the surface of a lake becomes cool. Sound in the air above the lake will tend to:   show
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show An increase in the velocity with depth.  
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show The sound channel in the ocean.  
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show Both transverse and longitudinal.  
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show The sound doesn't spread in the up or down directions.  
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show Decreases with depth.  
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A pianist plays 2 keys: middle C, and the C above middle C (i.e., an octave higher.) The SPEED OF SOUND for the higher frequency, comopared to that for the lower frequency, is:   show
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As you move to a higher altitude, the temperature of the air:   show
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show Ultraviolet light.  
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The ozone layer is created by:   show
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SOSUS refers to:   show
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show It was concerned with the atmosphere.  
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show Microphones.  
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show Travel faster than short ones.  
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show Huygens.  
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show The wave moves slower.  
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show 20 meters per second.  
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The sound from a passing car sounds like a high pitch, but as it passes, it gets lower. That's an example of:   show
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Thunderclouds tend to rise until:   show
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The atmospheric sound channel is created because of:   show
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show Bend upward.  
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show L wave.  
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show At the same speed as high frequency.  
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show 880 Hz.  
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