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7th grade 3.1

All waves begin with a source______. energy
a ______ is a disturbance that transfers energy from one place to another. wave
matter ______ transferred as a wave moves. is not
when a flag waves int the wind, the flag ripples back and forth as the energy _________. travels
a ______ wave travels only through matter. mechanical
a _______ wave can travel through empty space or through matter. electromagnetic
there are ________ types of wave motion. three
a ________ wave is a wave in which the disturbance is perpendicular to the direction the wave travels. transverse
a _______ wave is a wave that makes the particles of a medium move back and forth parallel tot the direction the wave travels. longitudinal
two common waves in nature are water waves and ________ waves. seismic
in water wave particles move in ________ indicating that these waves are a combination of transverse and longitudinal waves. circles
_______ waves occur during an earthquake. seismic
the ________ of a wave is the distance from one point, such as the crest, to the corresponding point on the next. wave length
the _________ of a wave is the number of wavelengths that pass a point each second. frequency
frequency is measured in_______ (Hz) ; the longer the wavelength, the lower the frequency. Hertz
wave speed depends on the type of material, or ________, a wave travels through. medium
the maximum distance a wave varies from its rest position is the ________ of the wave; the more a(n) mechanical wave has, the larger the wave's amplitude will be amplitude
when you knock on one side of the door, the sound travels ________ sound waves through the door longitudinal
these waves travel through the ______ that makes up the door to the air on the other side. matter
the particles that make up the door _______ some of the sound energy. transfer
some of the energy of your knock bounces, or ________, back into the room reflects
waves that bounce off a surface follow the law of _______. reflection
_______ is the change in direction as it changes speed. refraction
Created by: gatesmak6458



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