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This quiz consists of 5 multiple choice and 5 short answer questions through Part 2, Harnassing the Elements, Exploiting Heat, Nuclear Power, pp. 142-173.

Multiple Choice Questions

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

2. What is the most common form of inclined plane found in machines?
(a) The rocker.
(b) The rods.
(c) The pully.
(d) The wedge.

3. Where is steam still used?
(a) In thermal power stations.
(b) In industrial engines.
(c) In some internal combustion engines.
(d) In water plants.

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

5. How many ways can heat travel?
(a) Three.
(b) Four.
(c) One.
(d) Two.

Short Answer Questions

1. What debris does a nuclear explosion create?

2. What is an absence of substance?

3. What is electricity flowing through a wire?

4. What is applied to a lever to make it move?

5. What are large fins which adjust their tilt to compensate for waves?

(see the answer key)

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