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HughesUnit5

GEHS-HughesUnit5

QuestionAnswer
Waves They transport energy.
Mechanical Waves Needs a medium or matter to move through.
Electromagnetic Waves Does not need a medium to move. Example is light.
Transverse Wave Wave motion is perpendicular to energy movement. (Up an down movement)
Longitudinal Wave Wave motion is parellel to energy movement. (Back and forth movement)
Compression Area where medium is compressed, in longitudinal wave, is like the crest of a transverse wave.
Rarefaction Area where medium is loose, in a longitudinal wave, is like the trough of a transverse wave.
Reflection Bouncing back of a wave when it meets a surface or boundary.
Diffraction Bending of waves around a barrier.
Refraction The bending of waves when they pass from one medium to another.
Interference When several waves combine to form a single new wave.
Sound Longitudinal waves produced by vibrating objects. Vibrations carry energy through a medium.
Pitch How high or low a sound is.
Frequency Number of wavelength in a given amount of time.
Decibel Unit to measure loudness or intensity.
Hertz Unit of Frequency.
Volume determined by strength of the wave and measured in decibels.
Speed Depends on the medium.
Created by: grimshaw'sclass
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