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

2. How many forces hold things together?
(a) One.
(b) Two.
(c) Four.
(d) Three.

3. What does a driving force initiate?
(a) Movement.
(b) Electron activity.
(c) Work.
(d) Inertia.

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

5. The rack and pinion is an example of ______________.
(a) A gear.
(b) A stifle.
(c) A wedge.
(d) A lever.

Short Answer Questions

1. What is the formula for work done?

2. What do you have to use in order to accomplish work with half the effort?

3. How does a wedge move an object up an inclined plane?

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

5. What is the principle that states energy is neither created nor destroyed?

(see the answer key)

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