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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. Who wrote "The British Mariner's Guide?"
(a) Bliss.
(b) Maskelyne.
(c) Harrison.
(d) Bradley.

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

3. Which clock did Harrison become dissatisfied with and never made to sea?
(a) H-4.
(b) H-1.
(c) H-3.
(d) H-2.

4. What was one of Harrison's innovations?
(a) Gears that could last for extended periods at sea.
(b) A brass and steel pendulum that aided in keeping time despite temperature changes.
(c) A new clock face that revolutionized the way we tell time.
(d) A vacuum that held out temperature changes.

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

Short Answer Questions

1. What kind of solution to the longitude problem did the Board of Longitude originally desire?

2. Who helped Harrison build a clock that never lost more than a second per month?

3. The moon travels a distance roughly equal to its own width every _________.

4. What was the powder of sympathy method to determine longitude called?

5. After Bradley died, who filled the open slot on the Board of Longitude.

(see the answer key)

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