This quiz consists of 5 multiple choice and 5 short answer questions through Part 2, Harnassing the Elements, Introduction, Floating, Flying and Pressure Power, pp.91-141.

Multiple Choice Questions

1. Under normal circumstances, what force(s) does a molecule possess?
(a) An attracting force and a repelling force.
(b) The force of electron splitting.
(c) The force of energy times matter.
(d) The force to overcome inertia.

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

3. What is the density of salt water compared to fresh water?
(a) Salt water is denser.
(b) It depends on their electrical charge.
(c) Fresh water is denser.
(d) They have the same density.

4. What happens if the edges of the two wheels touch?
(a) Nothing unless they have cams.
(b) The rotation of one will cause the other to rotate.
(c) The one will stop the other wheel.
(d) The one wheel will wear out faster than the other.

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