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seeds_clickers_chapter8_2

seeds_clickers_chapter8_2 - What effect does the formation...

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What effect does the formation of negative hydrogen ions in the sun's photosphere have on solar observations? 1 2 3 4 5 20% 20% 20% 20% 20% 1. We can view the sun's interior through special filters set to the wavelength of the absorption lines created by such ions. 2. Concentrations of such ions form sunspots that allow us to track solar rotation. 3. It divides the sun's atmosphere into three distinct, easily observable layers. 4. The extra electron absorbs different wavelength photons making the photosphere opaque. 5. These ions produce the "diamond ring" effect that is seen during total solar eclipses.
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What evidence do we have that the granulation seen on the sun's surface is caused by convection? 1 2 3 4 5 20% 20% 20% 20% 20% 1. The bright centers of granules are cooler than their dark boundaries. 2. The bright centers of granules are hotter than their dark boundaries. 3. Doppler measurements indicate that the centers are rising and edges are sinking. 4. The bright centers of granules are cooler than their dark boundaries; and Doppler measurements indicate that the centers are rising and edges are sinking. 5. The bright centers of granules are hotter than their dark boundaries; and Doppler measurements indicate that the centers are rising and edges are sinking.
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Which layer of the sun's atmosphere contains the cooler low-density gas responsible for absorption lines in the sun's spectrum? 1 2 3 4 5 20% 20% 20% 20% 20% 1. photosphere 2. chromosphere 3. corona 4. solar wind 5. all of these choices
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Which of the following is true about granules and supergranules? 1 2 3 4 5 20% 20% 20% 20% 20% 1. They are both about the same size. 2. Granules and supergranules each fade in about 10 to 20 minutes. 3. They are both due to convection cells in layers below. 4. They are both about the same size; and They are both due to convection cells in layers below. 5. Granules and supergranules each fade in about 10 to 20 minutes; and They are both due to convection cells in layers below.
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This diagram explains the structure of solar granules. Why is the center of a granule brighter than its edges? 1 2 3 4 5 20% 20% 20% 20% 20% 1. The surface elevation is higher at the center. 2. The surface elevation is lower at the center. 3. The temperature is higher at the center. 4. The temperature is lower at the center. 5. The surface elevation is higher at the center; and The surface elevation is lower at the center.
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What is revealed by observing the sun at a very narrow range of wavelengths within the 656-nm hydrogen alpha line?
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