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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. What is convection?
(a) The way a molecule radiates heat.
(b) When heat increases velocity.
(c) Heat moving from a liquid or gas molecule to another.
(d) When heat causes wind.

2. What does the acronym SONAR stand for?
(a) Situations in Navigation and Retreiving.
(b) Sound Navigation and Ranging.
(c) Somatic Navigation of Radar.
(d) Sounds Near and Ranging.

3. When a magnetic field flows from a magnet into metal what is pulled together?
(a) Nothing.
(b) The metal and the current.
(c) The magnet and the current.
(d) The metal and magnet.

4. What imparts movement into the air or water around them on a ship?
(a) Levers.
(b) Bits.
(c) Propellers.
(d) Cams.

5. What is the result of a collision of molecules which break on impact forming new and different molecules?
(a) Fusion.
(b) Combustion.
(c) Radiation.
(d) Fission.

Short Answer Questions

1. What is suction referred to in the act of flying?

2. How does a ship vary in density?

3. When an object absorbs light rays, how is the energy held in the object?

4. What is the term for the process of molecules moving further apart in convection?

5. What does RADAR use?

(see the answer key)

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