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This quiz consists of 5 multiple choice and 5 short answer questions through Part 2, Harnassing the Elements, Exploiting Heat, Nuclear Power, pp. 142-173.

Multiple Choice Questions

1. What are the effects of electricity?
(a) Only magnetism.
(b) Heat, light, and magnetism.
(c) Only light.
(d) It depends on the amperage.

2. What does the picture of a mammoth pulling a merry-go-round illustrate?
(a) Wedges.
(b) Blocks and tackles.
(c) Levers.
(d) Gears and belts.

3. What is one component of a lever?
(a) A straight edge.
(b) A screw.
(c) A spring.
(d) A caliper.

4. What do you have to use in order to accomplish work with half the effort?
(a) Twice the distance.
(b) Ten percent of the distance multiplied by one-third of the effort.
(c) One-third the distance.
(d) Half the distance.

5. Upon what does the amount of upthrust of an object in water depend?
(a) On whether or not the object is greater than one centimeter in diameter.
(b) On what the object's salinity is.
(c) On how much water the object displaces.
(d) On what the water's electrical charge is.

Short Answer Questions

1. How does floating harness the power obtained by squeezing or stretching molecules?

2. What is the transfer of heat through infrared rays?

3. What is the action of something burning?

4. What debris does a nuclear explosion create?

5. What is applied to a lever to make it move?

(see the answer key)

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