Astr 104, Spring 2008 – Quiz 8

1. What would happen to you if you tried to stand on the surface of a black hole?
a. The surface is not an actual place to stand on, and you would just fall inward.
b. Because black holes spin very fast you would be thrown outward at great speed.
c. You would be permanently stuck on the surface, unable to see or to move.
d. The strong gravity of the black hole would flatten you down on its surface.

2. Are there any black holes in our galaxy?
a. No, we don't really have any evidence for black holes anywhere yet.
b. No, they have been seen only in some of the most distant galaxies.
c. Only one, a supermassive black hole in the core of the galaxy.
d. Yes, both stellar-size black holes and a massive one at the core.

3. What is a black hole?