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Ch. 17 Waves

Vocabulary

QuestionAnswer
The medium through which sound waves travel air
If a transverse wave is moving from right to left, the individual particles are moving up and down
Waves are caused by vibrations
The highest point of a wave crest
Lowest point of a wave trough
maximum displacement of a particle by a wave amplitude
the distance between two crests of a wave wavelength
the time it takes for one full vibration of a particle in a medium period
the inverse of period frequency
the speed of a sound wave depends on the medium
a medium in which the molecules are closely packed and physically bonded together solid
the Doppler effect is an observed change in a wave's frequency
a wave in which particle motion is perpendicular to wave motion transverse wave
a vibration that fades out as energy is transferred from one object to another damped harmonic motion
a disturbance at the boundary between two media surface wave
a wave that requires a medium in which to travel mechanical wave
a wave in which particle motion is parallel to wave motion longitudinal wave
a wave that consists of oscillating electromagnetic fields, radiating outward at the speed of light. electromagnetic wave
points in a standing wave that have no vibration due to destructive interference nodes
the change in a direction of a wave when it encounters an obstacle or edge diffraction
method of adding crests and troughs of interfering waves together to describe a new wave principle of superposition
the combination of two or more waves that result in a single wave interference
interference that decreases amplitude destructive interference
the bending of waves as they pass from one medium to another at an angle refraction
sounds produced by the interference of sound waves that are used to tune piano strings beats
a pattern of vibration that resembles a stationary wave standing wave
interference that increases amplitude constructive interference
the bouncing back of a wave when it meets a surface or boundary reflection
Created by: swhitlock
 

 



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