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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 10: The Diamond Timekeeper.

Multiple Choice Questions

1. The Parliamentary committee assembled to respond to the problem of longitude relied on which two experts?
(a) Ptolomy and Jupiter.
(b) Newton and Halley.
(c) Flamsteed and Thacker.
(d) Whiston and Ditton.

2. What did Hadley and Godfrey invent?
(a) A celestial navigation map.
(b) A method to calculate lunar distance.
(c) A working telescope.
(d) A working clock.

3. What did Humphrey Ditton propose to use to solve the longitude problem?
(a) Animals.
(b) Compass.
(c) Telescope.
(d) Sounds.

4. How many times was Harrison married?
(a) Never.
(b) Once.
(c) Three times.
(d) Twice.

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

Short Answer Questions

1. What did Harrison complete in 1759?

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

3. Which clock was Harrison's greatest triumph?

4. How old was Harrison when he built his first pendulum clock?

5. Which of the following was NOT an early player in the quest for the longitude prize?

(see the answer key)

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