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

2. What causes expansion?
(a) Inertia.
(b) Gravity.
(c) Cold.
(d) Heat.

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

4. What is a substance that contains only one type of atom?
(a) An element.
(b) A molecule.
(c) A quantum.
(d) A cell.

5. What is one thing an electrical current can measure?
(a) Frequency.
(b) Density.
(c) Opacity.
(d) Particles in the air.

Short Answer Questions

1. What are two things that can happen to light rays?

2. What are small propellers mounted in the base of a ship's hull?

3. What do machines that keep something cool do to heat?

4. What occurs when molecules begin vibrating in a solid, then speed up their vibration when heated?

5. In the illustration of how electricity is generated by a chemical reaction, what is the end result of the illustration?

(see the answer key)

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