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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters 6-10.

Multiple Choice Questions

1. In Chapter 5, how much cheaper was coal than gasoline, for the same energy?
(a) 25 times.
(b) 30 times.
(c) 20 times.
(d) 15 times.

2. How many satellites needed to be in view for a GPS system to work on a plane?
(a) 4.
(b) 3.
(c) 2.
(d) 1.

3. When did the United States build a small nuclear weapon called the Davy Crockett?
(a) Late 1960s.
(b) 1964.
(c) 1958.
(d) Early 1960s.

4. How many deaths did the United Nations estimate around the world were caused by radiation from Chernobyl?
(a) 4,000.
(b) 9,000.
(c) 5,000.
(d) 11,000.

5. How long does the radioactivity of potassium-40 last?
(a) 100,000 years.
(b) A billion years.
(c) 9 trillion years.
(d) 2 million years.

Short Answer Questions

1. How much more natural radioactivity are people living in Denver exposed to than someone in New York City?

2. A ton of TNT is equal to the energy of how many food calories?

3. How fast was a plane moving that was used as a weapon in the 9/11 attack?

4. How many beta rays must a fifth of whiskey emit every minute or be considered unfit for human consumption?

5. In Chapter 5, what was the cost of nautral gass per million cubic feet?

(see the answer key)

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