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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 charge do untouched electrons carry?
(a) Positive.
(b) Neutral.
(c) It varies.
(d) Negative.

2. How is magnetism created?
(a) By all positive electrons.
(b) By rubbing together zinc tablets.
(c) By all negative electrons.
(d) By moving electrons.

3. Where can the electromagnetic fields exist that sound waves cannot?
(a) In the brain.
(b) Through dense matter.
(c) In a vacuum.
(d) Outside of matter.

4. Of what is color photography paper made when printing from a negative?
(a) Three color sensitive layers.
(b) One color sensitive layers.
(c) A black layer sandwhiched between two color sensitive layers.
(d) Six color sensitive layers.

5. What does a convex lens do?
(a) Creates a larger image of a smaller one.
(b) Causes an image to flatten.
(c) Causes an image to appear three dimensional.
(d) Creates a smaller image of a larger image.

Short Answer Questions

1. What do sound waves do to molecules?

2. What is the action of something burning?

3. What is suction referred to in the act of flying?

4. What is the distance between each peak of energy in a wave?

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

(see the answer key)

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