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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. At what altitude in Chapter 15 would a geostationary Earth orbit satellite orbit the earth?
(a) 31,000 miles.
(b) 22,000 miles.
(c) 33,000 miles.
(d) 27,000 miles.

2. How many people could be killed by the radioactivity in a nuclear power plant if they ate it?
(a) 15 million.
(b) 30 million.
(c) 50 million.
(d) 90 million.

3. What is the distance to the nearest star (other than the sun)?
(a) 2 light-years.
(b) About 4 light-years.
(c) 8 light-years.
(d) Around 5 light-years.

4. How much does a kilogram weigh?
(a) 1.8 pounds.
(b) 2.4 pounds.
(c) 2.2 pounds.
(d) 1.4 pounds.

5. At 100 miles altitude, what percent is the gravity from what it is on the surface?
(a) 60.
(b) 75.
(c) 95.
(d) 80.

Short Answer Questions

1. In what country is plutonium-239 not considered nuclear waste?

2. What would the temperature of the Earth's surface be without greenhouse gases?

3. In Chapter 14, where was a very large tokamak being built?

4. According to the IPCC, how much of a chance is there that humans are not responsible for global warming?

5. How much does the IPCC estimate that temperatures could rise during your lifetime?

Short Essay Questions

1. What was the Little Ice Age?

2. What radiation levels were measured after the Three Mile Island incident, and why were the levels not caused by the accident?

3. What are the challenges for people moving in weak gravity?

4. At the end of Chapter 14, what does the author believe about nuclear power in the U.S.?

5. What happened to the space shuttle Challenger?

6. Why do all objects fall at the same speed?

7. What was learned about the climate of the past from glaciers covering Greenland?

8. In Chapter 18, what could the author see with night vision binoculars?

9. What needs to be understood about global warming?

10. What are the GRACE satellites, and what are some things that they have measured?

(see the answer keys)

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