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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

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

2. What principle does a thermostat use?
(a) The third principle of thermonectics.
(b) The principle that heat causes expansion.
(c) The principle of entropy.
(d) The law of electronic fission.

3. What happens if the edges of the two wheels touch?
(a) The one wheel will wear out faster than the other.
(b) The one will stop the other wheel.
(c) Nothing unless they have cams.
(d) The rotation of one will cause the other to rotate.

4. What occurs when molecules begin vibrating in a solid, then speed up their vibration when heated?
(a) Radiation.
(b) Conduction.
(c) Internal combustion.
(d) Solid combustion.

5. How many ways can heat travel?
(a) Three.
(b) One.
(c) Four.
(d) Two.

6. What is a wheel and rod attacked by a hinge?
(a) A worm.
(b) A crank.
(c) A prank.
(d) A spur.

7. How does heat travel through heating elements?
(a) In groups of molecules.
(b) Through inertia.
(c) Conduction and convection.
(d) Radiation.

8. What principle is in use as a propeller pushes the water back and as that same water which has been pushed back rolls forward again and hits the propeller?
(a) The Principle of Push and Thrust.
(b) The Principle of Gravity.
(c) The Principle of Force and Inertia.
(d) The Principle of Action and Reaction.

9. What controls the movement in a gear system?
(a) The size of the belt.
(b) The inertia needed to be overcome.
(c) The size of the gear.
(d) The rotation of the gear.

10. What is the main idea in Part 2 of the book?
(a) The way atoms can be made more dense.
(b) The way work can cause energy to dissipate.
(c) Exploring the bonds of attraction and the movement of molecules to and from each other.
(d) The way force can be exerted to change atomic structure.

11. What is the term for the process of molecules moving further apart in convection?
(a) Acceleration.
(b) Inference.
(c) Expansion.
(d) Trajection.

12. What does one have to understand in order to understand the way things work?
(a) The function of something.
(b) The terms of physics.
(c) The underlying principle.
(d) The reason something is made.

13. In how many elements did the Greek believe?
(a) Four.
(b) Seven.
(c) Three.
(d) Eight.

14. What does the picture of a mammoth pulling a merry-go-round illustrate?
(a) Gears and belts.
(b) Levers.
(c) Blocks and tackles.
(d) Wedges.

15. Under normal circumstances, what force(s) does a molecule possess?
(a) The force of electron splitting.
(b) An attracting force and a repelling force.
(c) The force of energy times matter.
(d) The force to overcome inertia.

Short Answer Questions

1. How does a ship vary in density?

2. Through what can heat not travel?

3. What is a substance that contains only one type of atom?

4. What imparts movement into the air or water around them on a ship?

5. What does a driving force initiate?

(see the answer keys)

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