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Light & Sound
Physical Science
Term | Definition |
---|---|
light | visible light is a type of electromagnetic energy that can travel as a wave or particle through solids, liquids, gases, or space without a medium |
reflection | the bouncing of a wave off a material |
refraction | changing the path of a wave as it moves between materials (or media) of different densities |
absorption | the "taking in" or interception of a wave and its energy |
medium | material through which a wave may be traveling (usually a solid, liquid, or gas) |
sound | an energy that travels by mechanical waves and produced by a vibrating object |
pitch | the high or low quality of sound; different notes are produced by this |
frequency | the rate of vibrations of an object |