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

2. What does a driving force initiate?
(a) Work.
(b) Electron activity.
(c) Movement.
(d) Inertia.

3. What is the result of a collision of molecules which break on impact forming new and different molecules?
(a) Fission.
(b) Combustion.
(c) Radiation.
(d) Fusion.

4. What controls the movement in a gear system?
(a) The inertia needed to be overcome.
(b) The size of the gear.
(c) The rotation of the gear.
(d) The size of the belt.

5. Why is cold water denser than warm water?
(a) Warm water's molecules move around more loosely.
(b) Warm water has a greater ability to absorb force.
(c) Cold water has a greater ability to coalesce.
(d) Cold water's molecules move around more loosely.

Short Answer Questions

1. What do machines that keep something cool do to heat?

2. What is the resistance of an object to any change in its speed or direction?

3. What do compound levers contain?

4. What is the main idea in Part 2 of the book?

5. How does a ship vary in density?

(see the answer key)

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