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Chapter 1: Imaginary Lines

1. What toy does the narrator play with at the beginning of Chapter 1: Imaginary Lines?
(a) A spinning top.
(b) A beaded wire ball.
(c) A yo-yo.
(d) A globe.

2. The difference between longitude and latitude is that latitude lines _____________ each other.
(a) Converge with.
(b) Intersect.
(c) Parallel.
(d) Bisect.

3. In AD 150, who plotted lines of longitude and latitude?
(a) Ptolemy.
(b) Moses.
(c) Newton.
(d) Galileo.

4. In the earliest lines of latitude, what marked the zero-degree line?
(a) The tropic of cancer.
(b) The north pole.
(c) The equator.
(d) The prime meridian.

5. The placement of the prime meridian was a ____________ decision.
(a) Historical.
(b) Political.
(c) Economic.
(d) Social.

6. What is the main difference in measuring longitude and latitude?
(a) Latitude is measured by time.
(b) Latitude is measured in degrees and longitude is not.
(c) Longitude is measured by time.
(d) Longitude is measured by the sun.

7. When measuring longitude, each hour of time difference between the ship and starting point marks a progress of how many degrees of longitude?
(a) 5.
(b) 25.
(c) 15.
(d) 30.

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