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Study Questions for Quiz #3 (2011)
NOTE: this list contains questions similar to those that will be on the quiz, but they may not be identical. Please be sure to read the quiz questions carefully. Also remember to review notes/questions from previous quizzes!  
H and He in our universe were made when and by what?
Nuclear fusion forms about half the elements, up to iron (Fe). Why can't nuclear fusion make elemnts larger than Fe?
How are elements larger than Fe made?
What is a giant molecular cloud?
What causes a star to die?
What two forces battle to keep a star going?
What process produces a white dwarf?
What is the relationship between the mass of a star and its temperature? longevity? brightness?
How do planetesimals form?  How do protoplanets form?
What is the frost line in a protoplanetary disk, and how does it affect the compositions of planets and small bodies that form inside and outside of it?
What are the major differences in compositions between the terrestrial & Jovian planets, and how does that relate to their position in terms of distance from the Sun?
What force governs the collapse of an interstellar gas cloud?
Draw a sketch of the sun, and label the core, radiative zone, convective zone, photosphere, chromosphere, and corona. Explain what happens in each region and how the relative temperature changes  in each.
What is a plasma?  How does solar plasma create a magnetic field?
What are: granulations, sunspots, prominences, solar flares, solar wind, and coronal mass ejections?
Why do sunspots appear dark?  What is the sunspot cycle?
What generates the aurora on Earth?  Why are aurorae stronger at the poles?
What is the source of the heat generated by the Sun?
What is the difference between an umbra and a penumbra?
What is a coronal mass ejection, and why might it be important to us on Earth?

This page was created by Astronomy Faculty members and is maintained by them.
Last updated on  6 March 2009