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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 12: A Tale of Two Portraits.

Multiple Choice Questions

1. After Bradley died, who filled the open slot on the Board of Longitude.
(a) It remains vacant.
(b) Harrison.
(c) Bliss.
(d) Maskelyne.

2. How did Maskelyne obtain all four of Harrison's clocks?
(a) He broke into his home and took them.
(b) He tried, but never succeeded, in obtaining Harrison's clocks.
(c) He offered him a sum more than the Longitude Prize.
(d) He came to Harrison's door with a warrant.

3. Who used the moons of Jupiter to solve the longitude problem?
(a) Newton.
(b) Galileo.
(c) Commodore Anson.
(d) Ptolomy.

4. After successfully completing the H-4, who passed an act that placed new restrictions on Harrison?
(a) The Board of Longitude.
(b) The French Government.
(c) The Royal Astronomers.
(d) The British Legislature.

5. What was wrong with the watch built within a vacuum?
(a) It was too expensive for the common sailor.
(b) The pendulum wasn't able to swing freely because of the vacuum.
(c) It lost accuracy due to temperature.
(d) It was too large to take to sea.

Short Answer Questions

1. In the earliest lines of latitude, what marked the zero-degree line?

2. Who came up with a way to draw longitude meridians on the night sky?

3. What year was Harrison born?

4. What was Nevil Maskelyne known as?

5. What does the coiled balance spring do in clocks?

(see the answer key)

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