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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 effort you put in combined with the distance over which the effort is done?
(a) Gravity.
(b) Work.
(c) Mendal's law.
(d) Rest.

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

3. Upon what principle does a pulley work?
(a) The rotation of one gear pulls the other.
(b) It is easier to pull something down rather than up.
(c) The amount of work required is halved by the amount of effort.
(d) It is easier to overcome gravity than force.

4. What does the picture of a mammoth pulling a merry-go-round illustrate?
(a) Blocks and tackles.
(b) Gears and belts.
(c) Levers.
(d) Wedges.

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

Short Answer Questions

1. What does the inclined plane do?

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

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

4. What is a fulcrum?

5. What is an example of a second-class lever?

(see the answer key)

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