Mechanical Waves: requires a medium, sound, has areas of compression and rarefaction, travel more quickly in solids, produced by vibrations, cannot be heard in a vacuum, can be either transverse or longitudinal waves, slinky, Electromagnetic Waves: no medium required, can move through a vacuum or medium, transverse waves, light waves, travels more quickly in gases, travels faster in sound waves, radio waves, x-rays,

Waves

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