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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. How does a rocket engine power the craft?
(a) By the combustion of two propellants.
(b) By the turning of a propeller.
(c) By nuclear fusion.
(d) By the combustion of one propellant.

2. What are small propellers mounted in the base of a ship's hull?
(a) Thrusters.
(b) Stablizers.
(c) Rudders.
(d) Tillers.

3. What is the transfer of heat through infrared rays?
(a) Convection.
(b) Heat cannot transfer through infrared rays.
(c) Transmigration.
(d) Thermal radiation.

4. What is the resistance of an object to any change in its speed or direction?
(a) Lift.
(b) Inertia.
(c) Propulsion.
(d) Gravity.

5. 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 how long it takes to get underway.
(d) According to its load.

Short Answer Questions

1. What does the inclined plane do?

2. What causes increased heat in the process of conduction?

3. What is the formula for work done?

4. What are two things a sail can do for a craft?

5. Why is cold water denser than warm water?

(see the answer key)

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