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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. What did Huygen's published argument state?
(a) Longitude could be determined by the moon.
(b) A map with correct currents was necessary to navigate at sea.
(c) Jupiters moons were really rings.
(d) A clock could establish longitude at sea.

2. When the Centurion set sail for the South Pacific, what did they not take with them?
(a) Medication to ward off scurvy.
(b) Harrison's clock.
(c) Smith's map.
(d) A compass.

3. How many sailors died near the Scilly Islands?
(a) 4,000.
(b) 1,000.
(c) 2,000.
(d) 500.

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

5. Why was it remarkable for Harrison to build his first pendulum clock?
(a) His design was stolen midway through building the clock.
(b) He was an adamant believer in the astronomical solution to longitude.
(c) He came from a very poor family with no means to build a clock.
(d) He wasn't a watchmakers apprentice.

Short Answer Questions

1. Who completed the first working pendulum clock?

2. When was the magnetic compass invented?

3. What was the name of the Portugese ship described in Chapter 2: The Sea Before Time that ran into a Spanish fleet?

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

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

(see the answer key)

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