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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 2 Space and Time.

Multiple Choice Questions

1. Who brought forth the idea that the earth and planets revolve around the sun?
(a) Ptolemy.
(b) Copernicus.
(c) Galileo.
(d) Aristotle.

2. Who wrote the introduction?
(a) Stephen Hawking.
(b) Carl Sagan.
(c) Edwin Hubble.
(d) Max Planck.

3. As an observer's velocity comes close to the speed of light, the observer's mass does what?
(a) Decreases to almost nothing.
(b) Covers more space.
(c) Increases to almost infinity.
(d) Stays the same.

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

5. Unlike children, scientists and philosophers, most adults use what to explain away the fundamental questions of the universe?
(a) Dreams.
(b) Religion.
(c) Logic.
(d) Common sense.

Short Answer Questions

1. In the universe, objects move in what type of direction?

2. What shape did Aristotle think the Earth was?

3. Scientists start their understanding of the universe with what?

4. The universe is largely made up of what?

5. Why did the Christian church adopt Ptolemy's view of the universe?

(see the answer key)

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