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Review Quiz No. 19

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Question 1: What is causing a

supernova?

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1. The collapse of the C,O core of a sun-like star.

2. The collapse of the iron core of a high-mass star.

3. The explosive onset of the Triple-Alpha process (3 He → C) in a star.

4. The explosive onset of Hydrogen fusion in a protostar.

5. The explosive onset of the fusion of Hydrogen, accumulated on the surface of a white dwarf.

Question 2:The most famous

supernova in recent history occurred in

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1. 1845.

2. 1905.

3. 1987.

4. 2000.

5. 2004.

Question 3:The Crab Nebula is

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1. the remnant of a giant seafood feast.

2. the remnant of the famous supernova 1987A

3. the remnant of a supernova observed in A.D. 1054.

4. the remnant of a recent nova explosion.

5. a planetary nebula.

Question 4:After a supernova

explosion, the collapsed stellar core

becomes

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1. a neutron star or a black hole.

2. a white dwarf.

3. a protostar.

4. a Herbig-Haro object.

5. a brown dwarf.