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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 causes increased heat in the process of conduction?
(a) Fusion.
(b) Increased movement.
(c) Electronic transfers.
(d) Fission.

2. What is the density of salt water compared to fresh water?
(a) They have the same density.
(b) It depends on their electrical charge.
(c) Fresh water is denser.
(d) Salt water is denser.

3. What do the double walls of a thermos enclose?
(a) Argon.
(b) Nitrogen.
(c) Oxygen.
(d) A vacuum.

4. What is the transfer of heat through infrared rays?
(a) Heat cannot transfer through infrared rays.
(b) Thermal radiation.
(c) Convection.
(d) Transmigration.

5. What do compound levers contain?
(a) Two fulcrums and two points of force and two of load.
(b) No fulcrum but two points of force and two of load.
(c) Two fulcrums and one point of force and load.
(d) A single fulcrum and two points of force and two of load.

Short Answer Questions

1. As the frequency speed increases, what happens to the pitch?

2. What does RADAR use?

3. What occurs when very small atoms smash together?

4. In what part of the atom does one find electrons?

5. What controls the movement in a gear system?

(see the answer key)

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