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3.3

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
all waves begin with a source _______.   energy  
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a _______ is a disturbance that transfers energy   wave  
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when a flag waves in the wind, the flag ripples back and forth as the energy ______ along the flag   travels  
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an____________ wave travels only through matter   mechanical  
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an _____________ wave can travel through empty space or through matter   electromagnetic  
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there are __________ types of wave motion   three  
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A ___________ wave is a wave in which the disturbance is perpendicular to the direction the wave travels   transverse  
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A ____________ wave is a wave that makes the particles of a medium move back and forth parallel to the direction the wave   longitudinal  
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Two common waves in nature are water waves and _______ waves   seismic  
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In water waves , water particles move in _________   circles  
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these waves are a combination of ___________ and _________   transverse and longitudinal  
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_________ waves occur during an earth quake   seismic  
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The _____________ of a wave is the distance from one point   wavelength  
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the ________________ of a wave is the number of wavelengths that pass a point each second   frequency  
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frequency is measured in _________.   hertz  
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the ____________ the wavelength the lower the frequency   longer  
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wave speed depends on the type of material , or ____________   medium  
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the maximum distance a wave varies from its rest position is the __________   amplitude  
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the more energy a___________ wave has , the larger the wave's _______ will be   transverse and wavelength  
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the particles that make up the door___________ some of the sound energy   absorb  
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Some of the energy of your knock bounces, or ___________, back into the room that is why you __________ the sound   reflects and hear  
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__________ is the change in direction of a wave as it changes speed moving from one medium into another   refraction  
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waves that bounce off a surface follow the law of __________   reflection  
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the angle between the ___________ wave and the ___________is equal to the angle between the _________ wave   incident, normal, and reflected  
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the change in direction of a ________ when it travels past the edge of an object or through an opening is called________   wave and diffraction  
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