Chapter 10: Waves
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32 Terms
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Diffraction
________: occurs when an object causes a wave to change direction and bend around it.
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Resonance
________: The process by which an object is made to vibrate by absorbing energy at its natural frequencies.
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Light waves
________ have a much shorter wavelength.
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Rarefaction
________: less- dense region of a compressional wave.
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Refraction
________: he bending of a wave caused by a change in its speed as it moves from one medium to another.
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Interference
________: When two or more waves overlap and combine to form a new wave.
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Period
________: the amount of time it takes one wavelength to pass a point.
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Amplitude
________: related to the energy carried by a wave.
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Frequency
________ is expressed in hertz (Hz)
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destructive interference
In ________, the waves subtract from each other as they overlap.
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seismic waves
When objects on Earths surface absorb some of the energy carried by ________, they move and shake.
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Sound waves
________ usually travel faster in liquids and solids than they do in gases.
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obstacle
If the ________ is much larger than the wavelength, almost no diffraction occurs.
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Light waves
________ travel slower in water than in air.
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Sound waves
________ travel through the air to reach your ears.
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Frequency
________: the number of wavelengths that pass a fixed point each second.
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Diffraction
________ and refraction both cause waves to bend.
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Wave
________: a repeating disturbance or movement that transfers energy through matter or space.
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Medium
the matter the waves travel through
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Transverse Wave
matter in the medium moves back and forth at right angles to the direction that the wave travels
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Compressional Wave
matter in the medium moves back and forth along the same direction that the wave travels
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Crests
high points of a wave
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Troughs
low points of a wave
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Rarefaction
less-dense region of a compressional wave
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Wavelength
the distance between one point on a wave and the nearest point just like it
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Period
the amount of time it takes one wavelength to pass a point
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Amplitude
related to the energy carried by a wave
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Refraction
he bending of a wave caused by a change in its speed as it moves from one medium to another
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Diffraction
occurs when an object causes a wave to change direction and bend around it
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Interference
When two or more waves overlap and combine to form a new wave
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Standing Wave
special type of wave pattern that forms when waves equal in wavelength and amplitude, but traveling in opposite directions, continuously interfere with each other
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Resonance
The process by which an object is made to vibrate by absorbing energy at its natural frequencies