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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. What is the transfer of heat through infrared rays?
(a) Heat cannot transfer through infrared rays.
(b) Convection.
(c) Thermal radiation.
(d) Transmigration.

2. Through what can heat not travel?
(a) Very porous elements.
(b) There is nothing through which heat cannot travel.
(c) Very dense elements.
(d) A vacuum.

3. How does a zipper operate?
(a) Just using triangular wedges.
(b) The use of triangular wedges and lower curved wedges.
(c) Just lower curved wedges.
(d) It is not a wedge system, but rather a rolling arc system.

4. How many ways can heat travel?
(a) One.
(b) Four.
(c) Two.
(d) Three.

5. What is a first-class lever?
(a) Where there is no load needed for the effort.
(b) Where the effort is a greater distance from the fulcrum than the load.
(c) Where the distance is further from the fulcrum than the effort.
(d) Where the effort and the load are equal distances from the fulcrum.

Short Answer Questions

1. What does one have to understand in order to understand the way things work?

2. What is the most common form of inclined plane found in machines?

3. What additional tasks can a boat with two triangular sails do?

4. What are two things that can happen to light rays?

5. What happens when molecules are squeezed or stretched beyond the boundaries of their comfortable balance?

Short Essay Questions

1. What is an airfoil and how does it work?

2. Discuss how sails are used on a boat.

3. How do power crafts control their direction?

4. What rays does the sun emit? How do those rays react to an object?

5. What is the main focus of the first section of Part 2, Harnessing the Elements?

6. Upon what law of physics are the simple machines that are introduced in Part 1 governed?

7. How can electric heat keep things cold?

8. Define the two elements that explosives must contain.

9. Discuss fulcrum points as pertaining to levers.

10. What is a vacuum? What is one invention that uses this principle?

(see the answer keys)

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