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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 debris does a nuclear explosion create?
(a) Fallout.
(b) Acid rain.
(c) None.
(d) Steam.

2. How does a ship vary in density?
(a) According to how much water is on board.
(b) According to the speed it is making.
(c) According to its load.
(d) According to how long it takes to get underway.

3. What is an absence of substance?
(a) Gravity.
(b) Outer space.
(c) Matter.
(d) A vacuum.

4. What do the double walls of a thermos enclose?
(a) Nitrogen.
(b) Argon.
(c) Oxygen.
(d) A vacuum.

5. What happens if the force of upthrust is equal to the weight of an object in water?
(a) The object moves across the surface of the water.
(b) The object projects out of the water.
(c) The object floats.
(d) The object sinks.

Short Answer Questions

1. What causes sideways movements of a ship?

2. How many ways can heat travel?

3. What does one have to understand in order to understand the way things work?

4. What happens when you exert your strength across a longer distance?

5. What principle does a thermostat use?

(see the answer key)

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