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This quiz consists of 5 multiple choice and 5 short answer questions through Part 2, Harnassing the Elements, Introduction, Floating, Flying and Pressure Power, pp.91-141.

Multiple Choice Questions

1. What is one component of a lever?
(a) A caliper.
(b) A straight edge.
(c) A spring.
(d) A screw.

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

3. What causes sideways movements of a ship?
(a) Rods.
(b) Jone's principle.
(c) Cams.
(d) Thrusters and stabilizers.

4. Where are wheels and axles found?
(a) Just on cars and bikes.
(b) Wherever there is rotary motion.
(c) On all pulley systems.
(d) Where a spoke and center come together.

5. What happens when molecules are squeezed or stretched beyond the boundaries of their comfortable balance?
(a) The molecules dissipate into individual atoms that can be lost or destroyed.
(b) The molecules are driven to return to that balance.
(c) The molecules are driven to remain unbalanced.
(d) They remain in an uneasy balance.

Short Answer Questions

1. What does the picture of a mammoth pulling a merry-go-round illustrate?

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

3. What is the main idea in Part 2 of the book?

4. What does the Mechanics of Movement explore?

5. What controls direction on a ship?

(see the answer key)

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