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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 3 The Expanding Universe.

Multiple Choice Questions

1. In the universe, objects move in what type of direction?
(a) In straight lines.
(b) In circular motions.
(c) In curved lines.
(d) In waves.

2. Light moves along what sort of lines?
(a) Straight.
(b) Curved.
(c) Tilted.
(d) Wavy.

3. For satellites orbiting the earth, time does what in relation to the ground of the earth?
(a) Runs almost at the same pace.
(b) Remains the same.
(c) Speeds up.
(d) Slows down.

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

5. How does Hawking define scientific theory?
(a) A model of the universe that predicts some events, but isn't accurate.
(b) A model of the universe made up of molecules.
(c) A model of the universe with a set of rules.
(d) A model of the universe that meets common sense expectations.

Short Answer Questions

1. Who discovered the theory of gravity?

2. What question is among the unanswerable questions children ask, according to the Introduction?

3. Philosophers try to understand the universe using what method?

4. Groups of atoms create what?

5. Unlike children, scientists and philosophers, most adults use what to explain away the fundamental questions of the universe?

(see the answer key)

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