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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 do compound levers contain?
(a) Two fulcrums and two points of force and two of load.
(b) Two fulcrums and one point of force and load.
(c) No fulcrum but two points of force and two of load.
(d) A single fulcrum and two points of force and two of load.

2. What is a fulcrum?
(a) A point at which inertia is overcome.
(b) A special sort of wedge.
(c) A formula for determining energy needed to do work.
(d) A pivot point.

3. What is applied to a lever to make it move?
(a) Balance.
(b) Work.
(c) Gravitational pull.
(d) Force.

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

5. What do you have to use in order to accomplish work with half the effort?
(a) One-third the distance.
(b) Twice the distance.
(c) Ten percent of the distance multiplied by one-third of the effort.
(d) Half the distance.

Short Answer Questions

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

2. What is a wheel and rod attacked by a hinge?

3. What is one example the author uses of a wedge?

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

5. What is the principle behind the action of any machine?

(see the answer key)

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