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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 pumps refrigerant out in an air conditioner?
(a) A gear.
(b) Oscillator.
(c) A solenoid.
(d) A compressor.

2. What contains one element which is the detonator and another reactive element which acts as the propellant?
(a) Propellants.
(b) Oscillators.
(c) Engines.
(d) Explosives.

3. What is applied to a lever to make it move?
(a) Balance.
(b) Work.
(c) Gravitational pull.
(d) Force.

4. What are tanks that take in water to increase the density of the craft?
(a) Variable.
(b) Rolling.
(c) Ballast.
(d) Bilge.

5. In flying, what is used to overcome weight from gravity?
(a) Lift created by the tiller.
(b) Lift created by the nose.
(c) Lift created by the airfoil.
(d) Lift created by the rudder.

Short Answer Questions

1. What is another type of wedge the author mentions?

2. What is an example of a second-class lever?

3. What is one example the author uses of a wedge?

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

5. How many forces hold things together?

(see the answer key)

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