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Waves disturbance that moves through matter or space
Transverse particles move back & forth at right angles a.Crest-high point b. Trough-low point
Compressional particles move back & forth same direction as wave
Electromagnetic Waves Waves-light, radio x rays a. It is a transverse wave
Properties Wavelength
Frequency number of waves that pass in a second
1/2 distance crest & trough Waves change Direction Amplitude
Law of reflection the angle of reflection always equals the angle of incidence
Refraction bending of light (pencil/water)
Diffraction bending around an obstacle (people talking in next room)
Sound Waves Sound waves are compressional
Drum head vibrates, air particles vibrate, compressions & rarefactions Can only travel through matter
Speed of Sound depends on what it travels through
Created by: bkneubuehl



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