4th Quarter Week 6 Vocabulary.

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Presentation transcript:

4th Quarter Week 6 Vocabulary

electromagnetic waves A form of energy that includes visible light, ultraviolet light, and infared, x- rays, etc.; do not require a medium to travel.

absorption Occurs when light waves transfer energy to particles of matter.

scattering an interaction of light with matter that causes light to change direction. Light scatters in all directions.

TRANSMISSION Occurs when light waves pass through an object without interacting.

REFRACTION Occurs when light waves bend as they pass from one medium to another.

REFLECTION Occurs when light waves bounce off of an object.

wavelength the distance between two consecutive crests or compressions

radiation the transfer of energy as electromagnetic waves

infrared light has longer wavelength and carry less energy than visible light waves.

ultraviolet light wavelengths are shorter than those of visible light and carry more energy than visible light waves.

uv index indicator of radiation exposure or exposure to UV rays

DIFFRACTION Occurs when waves bend around a barrier.