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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. What does Hawking say math is useful for?
(a) Describing everything we know.
(b) Communicating in a single language.
(c) Describing what we observe in the known universe.
(d) Communicating about our observations.

2. Even empty space is filled with what?
(a) Pairs of protons and electrons.
(b) Pairs of virtual particles and antiparticles.
(c) Pairs of particles to form dark matter.
(d) Pairs of positive and negative particles.

3. Einstein signed a letter to what President urging him to take discovery of the nuclear bomb seriously?
(a) Lyndon B. Johnson.
(b) Herbert Hoover.
(c) John F. Kennedy.
(d) Franklin Roosevelt.

4. 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) Gravity.
(c) Light.
(d) Particles.

5. What might escape from a black hole?
(a) Nothing.
(b) Something with more gravitational force than a black hole.
(c) Gamma rays.
(d) Photons.

Short Answer Questions

1. What church panel was Galileo brought before?

2. Hawking believes that if science does discover a complete theory of the universe, then humans will have come to know what?

3. Who discovered the equation that governs the electron?

4. Mathematics is the language of what?

5. A possible solution to combining general relativity and the uncertainty principle is what?

Short Essay Questions

1. What is Einstein's general theory of relativity's famous equation?

2. What is the estimated concentration of black holes?

3. What does the psychological arrow of time represent?

4. What is the difference between string theory and the other theories?

5. According to Hawking, people are naturally curious about what?

6. Real time is described in math using what?

7. What does a weak form of the anthropic principle hold for the view of the universe?

8. What is one theory about what happens when particles match up with their anti-particles on the event horizon of a black hole?

9. What are the three possibilities Hawking sees for the unification of physics theory?

10. When you combine the general theory of relativity and quantum mechanics, what does that mean for the universe?

(see the answer keys)

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