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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 causes sideways movements of a ship?
(a) Thrusters and stabilizers.
(b) Rods.
(c) Jone's principle.
(d) Cams.

2. What is a wheel and rod attacked by a hinge?
(a) A worm.
(b) A prank.
(c) A spur.
(d) A crank.

3. What is the factor which determines an object's ability to float?
(a) Density.
(b) Force.
(c) Volume.
(d) Inertia.

4. What causes expansion?
(a) Inertia.
(b) Cold.
(c) Heat.
(d) Gravity.

5. What is the formula for work done?
(a) Distance plus effort.
(b) Effort times gravitational force.
(c) Distance divided by strength.
(d) Effort multiplied by distance.

Short Answer Questions

1. What is an absence of substance?

2. Why is cold water denser than warm water?

3. In how many elements did the Greek believe?

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

5. What are tanks that take in water to increase the density of the craft?

(see the answer key)

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