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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 9: Hands on Heaven's Clock.

Multiple Choice Questions

1. When the Centurion set sail for the South Pacific, what did they not take with them?
(a) Smith's map.
(b) Harrison's clock.
(c) Medication to ward off scurvy.
(d) A compass.

2. Early clocks weren't up to measuring longitude at sea for two reasons. They were not accurate and changed because of what while at sea?
(a) Wind.
(b) Speed of the boat.
(c) Temperature.
(d) Rocking of the boat.

3. What does the coiled balance spring do in clocks?
(a) Allows the clock to keep a constant temperature.
(b) Allows the navigator to know the time in the home port.
(c) Prevents waves from destabilizing the clock.
(d) Prevents the pendulum from losing time.

4. When was the magnetic compass invented?
(a) 12th century.
(b) 10th century.
(c) 15th century.
(d) 17th century.

5. How did astronomers feel about Harrison's clock idea for solving the problem of longitude?
(a) They thought it had promise and could be used in conjunction with the lunar theory.
(b) They thought it ridiculous because it would be too expensive to mass produce clocks.
(c) They thought that it was outrageous because it didn't require the intellect of the lunar theory.
(d) They saw potential but were still very skeptical.

Short Answer Questions

1. In the Whiston-Ditton proposal, what did they hope to be exempt from?

2. What did Hadley and Godfrey invent?

3. What was the punishment for mutiny on the Association?

4. What year was Harrison born?

5. Where did Harrison go to present his case to the Board of Longitude?

(see the answer key)

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