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

Multiple Choice Questions

1. The uncertainty principle says that certain pairs of quantities (like position and velocity of a particle) cannot be determined with what?
(a) Mathematics.
(b) Accuracy.
(c) Experiments.
(d) Relational theory.

2. How many black holes are estimated per cubic light year of space?
(a) 300.
(b) 350.
(c) 400.
(d) 450.

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

4. Who created the idea that a star can collapse and become a black hole?
(a) Robert Wilson.
(b) Alexander Friedmann.
(c) Roger Penrose.
(d) Arno Penzias.

5. Science has become too _____, so that normal people and philosophers cannot understand it.
(a) Removed from reality.
(b) Complex.
(c) Abstract.
(d) Technical and mathematical.

Short Answer Questions

1. Hawking believes that scientists are too taken up with the "what" of the universe to ask which question?

2. The idea of the big bang arises from what phenomena?

3. In what year did Edwin Hubble discover galaxies outside of our own?

4. What might escape from a black hole?

5. Hawking calls the possibility of the universe collapsing "the big ____?"

(see the answer key)

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