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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 the main idea in Part 2 of the book?
(a) Exploring the bonds of attraction and the movement of molecules to and from each other.
(b) The way work can cause energy to dissipate.
(c) The way atoms can be made more dense.
(d) The way force can be exerted to change atomic structure.

2. What is the resistance of an object to any change in its speed or direction?
(a) Gravity.
(b) Inertia.
(c) Lift.
(d) Propulsion.

3. Upon how many major principles do propellers and rudders work?
(a) One.
(b) Four.
(c) Two.
(d) Three.

4. What is an example of a second-class lever?
(a) A clock.
(b) An engine block system.
(c) A crane.
(d) A nutcracker.

5. What is the formula for work done?
(a) Effort times gravitational force.
(b) Distance plus effort.
(c) Distance divided by strength.
(d) Effort multiplied by distance.

Short Answer Questions

1. What is the result of a collision of molecules which break on impact forming new and different molecules?

2. In how many elements did the Greek believe?

3. Where are wheels and axles found?

4. What is the transfer of heat through infrared rays?

5. What are the effects of electricity?

(see the answer key)

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