Chapter 24.1 The study of light – Flashcards
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absorption spectrum
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Graph plotting a pigments light absorption versus wavelengths
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emission spectrum
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The spectrum of light released from excited atoms of an element
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Doppler effect
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An observed change in the frequency of a wave when the source or observer is moving
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photosphere
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Surface of the sun
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chromosphere
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A gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun
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corona
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outermost portion of the solar atmosphere
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solar wind
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A stream of electrically charged particles produced by the sun's corona
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sunspot
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A dark area of gas on the sun's surface that is cooler than surrounding gases.
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prominence
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A loop of gas that protrudes from the sun's surface, linking parts of sunspot regions
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solar flare
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A sudden eruption of intense high-energy radiation from the sun's surface
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aurora
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An atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force
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nuclear fusion
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2 isotopes of light elements (H) forced together at high temperatures till they fuse to form a heavier nucleus. Expensive, break even point not reached yet
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