Exam 7: The Sun

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The Zeeman effect shows that sunspots contain magnetic fields.

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The element most abundant in the Sun is oxygen.

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Initially, scientists detected lower than the expected number of neutrinos from the Sun.

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A ________ is believed to occur when energy, stored in a twist in the solar magnetic field above a sunspot, is suddenly released.

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The corona and chromosphere of the Sun are believed to be heated by

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Sunspots

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What are the three layers of the Sun's atmosphere, in order of increasing distance from the surface

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Modern astronomers suspect the corona is heated by

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The _________ coincides with the period known as the "little ice age" of Europe and North America. This provides one piece of evidence that suggests a link between solar activity and the amount of solar energy Earth receives.

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a) Draw the p-p fusion chain that generates helium from hydrogen, labeling each of the four hydrogen atoms needed in the reaction. Label each product formed or particle generated by its common name. b) Discuss how many particles and products are generated in one fusion chain.  

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In the second step of the p-p fusion chain, light helium is formed by the fusion of a ______________ with a __________. A byproduct of the reaction is a ____________.

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The ________ is (are) the hot gases that are the moving extension of the Sun's corona.

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Why does a filtergram reveal details in higher layers of the solar atmosphere

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The Zeeman effect can be used to determine the _______ our Sun and other stars.

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Sunspots often appear in pairs.

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What is the Babcock model

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Spicules

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What evidence do we have that the chromosphere is hotter than the photosphere

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The gas motions within granules on the solar surface are

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The chromosphere of the Sun

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