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

Multiple Choice Questions

1. Gravitational force is always what?
(a) Repulsive.
(b) Attractive.
(c) Present.
(d) Negated by other forces.

2. What else can we not see, besides black holes?
(a) Photon matter.
(b) Black matter.
(c) Light waves.
(d) Clear matter.

3. Hawking believes that scientists are too taken up with the "what" of the universe to ask which question?
(a) Why?
(b) How?
(c) When?
(d) Who?

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

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

Short Answer Questions

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

2. If there is a grand unified theory, according to Hawking it would be the ultimate triumph of what?

3. How far away is our sun from the earth in terms of light?

4. Mathematics is the language of what?

5. Black holes can capture matter particles and what other type of particles?

(see the answer key)

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