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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 urges do molecules possess?
(a) Only the urge to huddle together.
(b) None.
(c) Only the urge to spread apart.
(d) The urge to huddle together or spread apart.

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

3. What is suction referred to in the act of flying?
(a) Glide.
(b) Floating.
(c) Lift.
(d) Sinking.

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

5. What does increasing heat do to molecules?
(a) It makes them break apart.
(b) It increases the movement of molecules.
(c) It slows them down.
(d) Nothing.

Short Answer Questions

1. What is electricity flowing through a wire?

2. How many ways can heat travel?

3. What does one have to understand in order to understand the way things work?

4. What debris does a nuclear explosion create?

5. What happens when an object is placed in water?

(see the answer key)

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