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This test consists of 5 short answer questions, 10 short essay questions, and 1 (of 3) essay topics.

Short Answer Questions

1. What is the unit of measurement for particle energy?

2. As an observer's velocity comes close to the speed of light, the observer's mass does what?

3. How close is the closest star, other than the sun, to earth?

4. Edwin Hubble's observation that the universe is expanding supports what theory?

5. To observe black holes you must observe what?

Short Essay Questions

1. What is the difference between the Aristotelian approach to science and Galileo's approach?

2. What do religious explanations to fundamental questions of the universe reveal?

3. What could cause the expansion of the universe to go on forever?

4. According to Carl Sagan, what prompts children to ask seemingly unanswerable questions?

5. What was the Ancient Greek view of the universe?

6. Due to the influences of mass and energy, light does what?

7. What determines whether a star can become a black hole?

8. Why do scientists think that there is a black hole in the star system Cygnus X-1?

9. What model of the atom persisted until the 1960's?

10. What will happen if the expansion of the universe stops?

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

Hawking says there are three possibilities for the unification of physics theory. What are they? Which one will prevail? Support your answer with examples from the text.

Essay Topic 2

Pick a scientist (Einstein, Galileo or Newton) and discuss, using examples from the book, that scientist's contributions to the view of the universe we hold today.

Essay Topic 3

Hawking states that without science there can be no prediction and without predictive ability time is meaningless (Chapter 1). What does Hawking mean by this statement? Use examples from the text to support your position.

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