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This quiz consists of 5 multiple choice and 5 short answer questions through Part Four: Electricity and Automation.

Multiple Choice Questions

1. What is one type of ray that human eyes cannot perceive?
(a) Any black spectrum rays.
(b) Microwaves.
(c) Any yellow spectrum rays.
(d) Any red spectrum rays.

2. What is created when heating an object to the point that it burns or glows, or by passing an electric current through a vapor or gas?
(a) Sounds at lower than average frequencies.
(b) Sounds at higher than average frequencies.
(c) A chemical reaction.
(d) Artificial light.

3. What is a substance that contains only one type of atom?
(a) An element.
(b) A quantum.
(c) A molecule.
(d) A cell.

4. Under what situation does the eye perceive a reflection of light?
(a) When the retina has no rods or cones.
(b) When the convex lens is distorted.
(c) When the concave lens is distorted.
(d) In looking at a solid.

5. What causes electrons to move?
(a) The attraction to the proton.
(b) Energy.
(c) Electrostatics.
(d) Ectoplasma.

Short Answer Questions

1. What does the Mechanics of Movement explore?

2. What is a first-class lever?

3. What is one step in creating liquid crystal displays?

4. What does a convex lens do?

5. How does a ship vary in density?

(see the answer key)

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