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This quiz consists of 5 multiple choice and 5 short answer questions through Part Four: Electricity and Automation.

Multiple Choice Questions

1. How does a rocket engine power the craft?
(a) By the combustion of one propellant.
(b) By the turning of a propeller.
(c) By nuclear fusion.
(d) By the combustion of two propellants.

2. What is an absence of substance?
(a) Matter.
(b) Gravity.
(c) A vacuum.
(d) Outer space.

3. Of what is color photography paper made when printing from a negative?
(a) Three color sensitive layers.
(b) One color sensitive layers.
(c) Six color sensitive layers.
(d) A black layer sandwhiched between two color sensitive layers.

4. What is one phenomenon a measurement of force measures?
(a) Earthquakes.
(b) Pull pressure.
(c) Push pressure.
(d) Vise pressure.

5. In what part of the atom does one find electrons?
(a) The outer ring.
(b) In both the nucleus and outer rings.
(c) They are not part of an atom.
(d) The nucleus.

Short Answer Questions

1. What happens when molecules are squeezed or stretched beyond the boundaries of their comfortable balance?

2. What are different level marks for different types of water on the side of a ship called?

3. In which direction do electrons always travel?

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

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

(see the answer key)

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