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. How does floating harness the power obtained by squeezing or stretching molecules?
(a) By squeezing an atom to split the proton and neutron.
(b) By gathering the individual electrons that are released.
(c) By energy "floating" through atomic fields and breaking the bonds to release energy.
(d) Through the form of upthrust.

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

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

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

5. What emits both infrared and light rays?
(a) A planet.
(b) A light bulb.
(c) The sun.
(d) The moon.