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This quiz consists of 5 multiple choice and 5 short answer questions through Part 1, The Mechanics of Movement.

Multiple Choice Questions

1. What is the formula for work done?
(a) Distance plus effort.
(b) Distance divided by strength.
(c) Effort times gravitational force.
(d) Effort multiplied by distance.

2. How many types of gears are there?
(a) One.
(b) Five.
(c) Four.
(d) Seven.

3. What is an example of a second-class lever?
(a) An engine block system.
(b) A nutcracker.
(c) A crane.
(d) A clock.

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

5. What does the inclined plane do?
(a) Increases effort.
(b) Decreases gravitational force.
(c) Extends the distance to a rise.
(d) Decreases effort.

Short Answer Questions

1. What is a first-class lever?

2. What happens if the edges of the two wheels touch?

3. What is another type of wedge the author mentions?

4. How many forces hold things together?

5. Where are wheels and axles found?

(see the answer key)

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