Astronomy Light & Atoms Review

An ideal radiator when hot and a perfect absorber when cool.

• thermal oscillator

• radiant source

• black body

• ideal gas

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When light gives up its energy to an atom or molecule

• absorption

• emission

• energy levels

• spectrum

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When an atom produces light or radiation

• wien's law

• absorption

• energy levels

• emission

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EM Radiation with a wavelength longer than visible light but shorter than radio waves.

• ultraviolet

• infrared

• x-rays

• sound waves

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Light, x-rays, and radio waves are all types of

• exteromacular radiation

• electromagnetic radiation

• endomyostasis radiation

• compressional radiation

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EM radiation with a wavelength shorter than visible light but longer than x-rays

• infrared

• gamma

• ultraviolet

• microwave

Wien's Law states the relationship between

• wavelength and frequency

• temperature and wavelength

• frequency and speed

• temperature and speed

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Light is _____________.

• a wave

• a particle

• both a wave and a particle

• neither a wave nor a particle

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A smooth spectrum that does not have dark or bright lines

• absorption spectrum

• emission spectrum

• continuous spectrum

• charter spectrum

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A spectrum with dark lines at some narrow color regions

• absorption spectrum

• emission spectrum

• continuous spectrum

• visible spectrum

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