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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 15: In the Meridian Courtyard.

Multiple Choice Questions

1. Who was Edmund Halley's heir?
(a) Thomas Godfrey
(b) Leonhard Euler.
(c) Tobias Mayer.
(d) James Bradley.

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

3. What did Harrison need to do to prove the H-4 worked?
(a) Take it apart and put it back together.
(b) Make two copies to prove that it could be duplicated.
(c) Draw the plans before the Board of Longitude.
(d) Label an astronomical map.

4. What did Harrison claim was wrong with Maskelyne's test of the H-4.
(a) It was placed in the basement, keeping the gears too cold to work correctly.
(b) It was dropped repeatedly in transport.
(c) Harrison used an incorrect testing method.
(d) It was placed in direct sunlight, superheating the watch mechanisms under the glass.

5. What was Harrison's most prized accomplishment?
(a) Inventing military time.
(b) Inventing a clock with hands.
(c) Discovering the lunar method of calculating longitude.
(d) Inventing a clock that would keep accurate time at sea.

Short Answer Questions

1. Who built a watch within a vacuum that could tell stable time?

2. When did clock makers begin to design clocks to measure longitude?

3. What did the Longitude Act of 1714 establish?

4. Where was the destination the Centurion was sailing for?

5. What was built at Greenwich Park?

(see the answer key)

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