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

Multiple Choice Questions

1. How close is the closest star, other than the sun, to earth?
(a) About 5 light years distant.
(b) About 5 light years distant.
(c) About 3 light years distant.
(d) About 4 light years distant.

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

3. In order to explain how black holes become a big bang, Hawking needs to include what?
(a) The theory of relativity.
(b) Quantum mechanics.
(c) Particle physics.
(d) The theory of everything.

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

5. If something can escape the event horizon of a black hole, it would be explained by thinking about the behavior of what?
(a) Waves.
(b) Light.
(c) Particles.
(d) Gravity.

Short Answer Questions

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

2. Laplace, at the beginning of the 19th century, postulated what idea?

3. Hawking co-authored a paper in what year that explains the big bang theory?

4. What is one thing particles do when they enter a black hole?

5. Some particles might match up with their anti-particles at what point?

(see the answer key)

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