Physical Science - Chapter 17 

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Physical Science

Physical-Science

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54 Terms

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Resonance
an increase in the amplitude of a vibration due to additional wave input.
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Rarefaction
a region of lower density and pressure in a longitudinal (compression) wave.
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uneven surface
Diffuse reflection: the reflection off a rough or ________ that reflects light rays in all directions.
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Frequency
the number of waves or cycles that occurs per second.
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Doppler effect
the perceived change in the frequency of a wave due to the motion of the waves source or of the receiver.
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Refraction
a change in wave direction due to a change in a waves speed as it enters a new medium.
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Wavelength
the distance between two identical points on successive waves.
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Compression
a region of high density and pressure in a longitudinal (________) wave.
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equilibrium position
Amplitude: the maximum displacement from the ________ during periodic motion.
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Driven oscillator
a system that is designed to oscillate at a constant amplitude by including a force to overcome frictional losses.
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periodic motion
motion that repeats in equal time intervals
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period
the time interval (T) for one complete cycle of the periodic motion
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damping
reducing the amplitude of periodic motion by applying a force that works against the motion
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damped oscillator
a system that is designed to oscillate but includes a force to reduce the amplitude
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driven oscillator
a system that is designed to oscillate at a constant amplitude by including a force to overcome frictional losses
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resonance
an increase in the amplitude of a vibration due to additional wave input
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wave
a disruption that carries energy from one location to another
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mechanical wave
a wave that carries energy through a physical medium
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electromagnet wave
a disruption in an electromagnetic field that carries energy, even through the vacuum of space
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crest
the highest point of a wave
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trough
the lowest point of a wave
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wavelength
the distance between two identical points on successive waves
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wave height
the vertical distance between the trough and crest of a wave
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amplitude
the maximum displacement from the equilibrium position during periodic motion
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transverse wave
a wave in which the disruptions move perpendicular to the direction of wave travel
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longitudinal wave
a wave in which the disruptions are parallel to the direction of wave travel
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compression
a region of high density and pressure in a longitudinal (compression) wave
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rarefaction
a region of lower density and pressure in a longitudinal (compression) wave
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surface wave
a wave that occurs along the interface between two media
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frequency
the number of waves or cycles that occurs per second
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reflection
the bouncing of waves off a surface
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regular reflection
reflection that occurs when a smooth surface reflects light rays in mostly the same direction; also known as specular reflection
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diffuse reflection
the reflection off a rough or uneven surface that reflects light rays in all directions
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refraction
a change in wave direction due to a change in a waves speed as it enters a new medium
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standing wave
a wave that is moving even though the locations of the crests and troughs appear to be stationary
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doppler effect
the perceived change in the frequency of a wave due to the motion of the waves source or of the receiver
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periodic motion
motion that repeats in equal time intervals
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period
the time interval (T) for one complete cycle of the periodic motion
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damping
reducing the amplitude of periodic motion by applying a force that works against the motion
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damped oscillator
a system that is designed to oscillate but includes a force to reduce the amplitude
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wave
a disruption that carries energy from one location to another
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mechanical wave
a disruption that carries energy from one location to another
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electromagnet wave
a disruption in an electromagnetic field that carries energy, even through the vacuum of space
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crest
the highest point of a wave
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trough
the lowest point of a wave
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wave height
the vertical distance between the trough and crest of a wave
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amplitude
the maximum displacement from the equilibrium position during periodic motion
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transverse wave
a wave in which the disruptions move perpendicular to the direction of wave travel
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longitudinal wave
a wave in which the disruptions are parallel to the direction of wave travels
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surface wave
a wave that occurs along the interface between two media
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reflection
the bouncing of waves off a surface
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regular reflection
reflection that occurs when a smooth surface reflects light rays in mostly the same direction; also known as specular reflection.
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diffuse reflection
the reflection off a rough or uneven surface that reflects light rays in all directions
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standing wave
a wave that is moving even though the locations of the crests and troughs appear to be stationary