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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. Who completed the first working pendulum clock?
(a) Vincenzio.
(b) Christian Huygens.
(c) Thomas Blundeville.
(d) Galileo.

2. What did Harrison build that still function today?
(a) Telescopes.
(b) Telephones.
(c) Clocks.
(d) Microscopes.

3. 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) Rocking of the boat.
(b) Speed of the boat.
(c) Wind.
(d) Temperature.

4. What was one disadvantage to using the magnetic variation method to determine longitude?
(a) Compasses were to large to take on ships.
(b) Compasses weren't continuously accurate.
(c) It led to misalignment with the stars.
(d) It could only be used on clear nights.

5. What year was Harrison born?
(a) 1727.
(b) 1693.
(c) 1715.
(d) 1650.

Short Answer Questions

1. When did Harrison learn of the Longitude Prize?

2. What was one benefit of the Whiston-Ditton proposal?

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

4. What could have avoided the tragedy near the Scilly Islands?

5. Describe the relationship between Harrison and the Royal Academy of Astronomers.

(see the answer key)

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