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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 11 Conclusion.

Multiple Choice Questions

1. What is one thing particles do when they enter a black hole?
(a) Become destroyed.
(b) Become very dense.
(c) Stop emitting light.
(d) Cause the emission of other particles.

2. Gamma ray detection might be able to be used to detect what?
(a) Pulsars.
(b) Black holes.
(c) Quasars.
(d) White dwarfs.

3. Galaxies contain what?
(a) The universe.
(b) Other galaxies.
(c) Stars.
(d) The earth.

4. Some particles might match up with their anti-particles at what point?
(a) When they escape a black hole.
(b) Before they enter a black hole.
(c) When they fall into a black hole.
(d) When they get crushed in a black hole.

5. Laplace, at the beginning of the 19th century, postulated what idea?
(a) Scientific experiments.
(b) Scientific knowledge.
(c) Scientific determinism.
(d) Scientific communication.

Short Answer Questions

1. Science has become too _____, so that normal people and philosophers cannot understand it.

2. What might escape from a black hole?

3. What force is the weakest of the four categories of forces?

4. Black holes are speculated to be clumped together due to what?

5. How many black holes are estimated per cubic light year of space?

(see the answer key)

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