Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time Quiz | Four Week Quiz B

Dava Sobel
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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 13: The Second Voyage of Captain James Cook.

Multiple Choice Questions

1. What advantage did the magnetic variation method have over astronomical approaches at determining longitude?
(a) Longitude could now be charted on a map.
(b) It utilized new technology in clockmaking.
(c) It didn't rely on wouding animals.
(d) It did not depend on knowing the time at two places at once.

2. What was the problem with pendulum clocks on ships?
(a) The ship's rocking would slow down or speed up the clock.
(b) Pendulum clocks were so valuable, the main concern was theft.
(c) Pendulum clocks would always point north.
(d) There were no problems, pemdulum clocks were very accurate onboard ships.

3. How accurate was the solution to longitude to be?
(a) At least five degrees.
(b) Less than ten degrees.
(c) Exact, no room for error.
(d) Within half a degree.

4. Who took Nathaniel Bliss's spot on the Board of Longitude?
(a) John Harrison.
(b) Nevil Maskelyne.
(c) Thomas Bradley.
(d) He was not replaced.

5. Before using clocks to navigate longitude, sailors used the __________.
(a) Compass.
(b) Currents.
(c) Maps.
(d) Sky: sun, moon, stars and constellations.

Short Answer Questions

1. What did Humphrey Ditton propose to use to solve the longitude problem?

2. How many more times accurate was the H-4 than the Longitude Act required?

3. What did King Louis build in Paris?

4. How is the fog described at the beginning of Chapter 2: The Sea Before Time?

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

(see the answer key)

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