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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 many miles does light travel in one earth year?
(a) 6 trillion miles.
(b) 5.5 trillion miles.
(c) 5 trillion miles.
(d) 5.88 trillion miles.

2. A black hole has zero what?
(a) Volume and surface area.
(b) Expansion.
(c) Curvature.
(d) Mass.

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

4. The idea of the big bang arises from what phenomena?
(a) The theory of light.
(b) The expanding universe.
(c) The decreasing universe.
(d) The theory of relativity.

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

Short Answer Questions

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

2. What type of matter might account for gravitational forces that cannot be explained by the mass of our universe?

3. If something can escape the event horizon of a black hole, it would be explained by thinking about the behavior of what?

4. Mathematics is the language of what?

5. Why do researchers want to find black holes?

(see the answer key)

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