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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. When measuring longitude, each hour of time difference between the ship and starting point marks a progress of how many degrees of longitude?
(a) 15.
(b) 5.
(c) 30.
(d) 25.

2. Where did Newton believe the answer to the longitude problem lie?
(a) A sound and light solution.
(b) A clock based solution.
(c) The wounded dog theory.
(d) An astronomical solution.

3. How is the fog described at the beginning of Chapter 2: The Sea Before Time?
(a) "Pea soup."
(b) "London fog."
(c) "Dirty weather."
(d) "Smokestacks.:

4. How long did Harrison work before receiving his monetary reward?
(a) 50 years.
(b) 10 years.
(c) 30 years.
(d) 40 years.

5. How many men of the original 500 perished on Centurion's voyage to the South Pacific?
(a) Half.
(b) 500.
(c) All but two.
(d) One quarter.

Short Answer Questions

1. Besides clocks, what was Hooke known for?

2. What was one disadvantage to using the magnetic variation method to determine longitude?

3. What was the powder of sympathy method to determine longitude called?

4. What does the term "dead reckoning" refer to?

5. Complete this analogy from Chapter 4:Time in a Bottle: Time is to clock as mind is to ____________.

Short Essay Questions

1. Describe the legend of how Galileo came up with the idea of the pendulum clock.

2. What was Humphrey Ditton's suggestion for determining longitude?

3. What was Galileo's longitude solution?

4. Explain how longitude is affected by time.

5. What was the main problem with the "lunar-distance" method?

6. In Chapter 2: The Sea Before Time, what happened to Sir Clowdisley's voyage?

7. What were the problems with William Whiston's proposal for determining longitude?

8. Why was it unusual that John Harrison became an accomplished clockmaker?

9. What was the problem with measuring the speed of light? How was it solved?

10. In 1740, the Centurion set sail for the South Pacific without Harrison's clock. What might have been different about the voyage if they would have taken the clock? Why?

(see the answer keys)

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