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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 contains one element which is the detonator and another reactive element which acts as the propellant?
(a) Oscillators.
(b) Explosives.
(c) Engines.
(d) Propellants.

2. Where is steam still used?
(a) In thermal power stations.
(b) In some internal combustion engines.
(c) In industrial engines.
(d) In water plants.

3. What happens when you exert your strength across a longer distance?
(a) Your effort is reduced, and your lesser strength becomes sufficient.
(b) Your effort is reduced so you can take advantage of your greater strength.
(c) Your effort is reduced, but your strength has to be increased.
(d) Nothing happens. It is all balanced by the decreased work required.

4. What causes increased heat in the process of conduction?
(a) Fission.
(b) Increased movement.
(c) Fusion.
(d) Electronic transfers.

5. What is any engine that burns fuel inside the engine?
(a) Internal combustion engine.
(b) Steam engine.
(c) Nuclear fusion engine.
(d) Thermodynamic engine.

Short Answer Questions

1. What is the density of salt water compared to fresh water?

2. What debris does a nuclear explosion create?

3. What are small propellers mounted in the base of a ship's hull?

4. What is convection?

5. In how many elements did the Greek believe?

(see the answer key)

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