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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters 16-20.

Multiple Choice Questions

1. In Chapter 17, what speed had unmanned prototypes of scramjets reached?
(a) Mach 8.
(b) Mach 11.
(c) Mach 9.
(d) Mach 10.

2. When did the space shuttle Challenger explode?
(a) March 2, 1986.
(b) January 28, 1986.
(c) February 9, 1986.
(d) April 19, 1986.

3. What was the efficiency of the best solar cells at the time the book was written?
(a) 41%.
(b) 38%.
(c) 68%.
(d) 52%.

4. Of those killed by the Hiroshima atomic bomb, what is the best estimate of the percent of people who died of radiation-induced cancer?
(a) 2.
(b) 25.
(c) 3.
(d) 11.

5. At the time the book was written, how much did the GRACE satellites discover that the ice volume in Antarctica is decreasing per year?
(a) 36 cubic miles.
(b) 27 cubic miles.
(c) 43 cubic miles.
(d) 51 cubic miles.

Short Answer Questions

1. How long did the author believe it would take for a true power tokamak to become a reality in Chapter 14?

2. How much of a rem is in tooth X-rays?

3. When the book was written, was the the total world production of oil per year?

4. At 5 miles per second, how much energy of an equal weight of TNT is carried by every ounce of a space shuttle, including its human cargo?

5. If a fighter pilot enters a maneuver that accelerates him for a brief time at 9 g, what force is exerted upon him?

(see the answer key)

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