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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 are different level marks for different types of water on the side of a ship called?
(a) Anchor marks.
(b) Horizon marks.
(c) Flow marks.
(d) Plimsoll lines.

2. What does the Mechanics of Movement explore?
(a) How the movement of anything can be either a net gain or net loss of energy.
(b) How pulleys ultimately lose energy that can never be regained.
(c) How the conservation of energy plays into movement, force, and effort.
(d) How pulleys can create energy.

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

4. What turns the crankshaft in an internal combustion engine?
(a) Steam.
(b) Piston.
(c) Pulley.
(d) Gear.

5. In flying, what is used to overcome weight from gravity?
(a) Lift created by the nose.
(b) Lift created by the tiller.
(c) Lift created by the rudder.
(d) Lift created by the airfoil.

Short Answer Questions

1. How does a wedge move an object up an inclined plane?

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

3. What controls the movement in a gear system?

4. How many ways can heat travel?

5. What do compound levers contain?

(see the answer key)

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