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This test consists of 5 short answer questions, 10 short essay questions, and 1 (of 3) essay topics.

Short Answer Questions

1. In how many elements did the Greek believe?

2. What urges do molecules possess?

3. What does the Mechanics of Movement explore?

4. What does one have to understand in order to understand the way things work?

5. What contains one element which is the detonator and another reactive element which acts as the propellant?

Short Essay Questions

1. What is the most common form of inclined plane in machines? How does it work?

2. What does the principle of the conservation of energy state? How does Part 1 relate to that principle?

3. How do heating elements work?

4. What is an internal combustion engine? Cite several examples of such engines.

5. How is nuclear power generated? What is one naturally occurring nuclear fusion?

6. What determines if an object will float?

7. Discuss how sails are used on a boat.

8. What is a vacuum? What is one invention that uses this principle?

9. How does a zipper work?

10. Discuss the relation of effort to distance.

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

Discuss the following:

1) Define nuclear fission.

2) Define nuclear fusion.

3) Describe how nuclear power is produced inside a reactor.

4) What is a chain reaction and how is the principle of a chain reaction important in producing nuclear power?

5) How can the principle of a chain reaction be dangerous? Research and see if there have been any instances when a nuclear chain reaction was not controlled and the consequences of such an event.

Essay Topic 2

Discuss the following:

1) Why is a screw an inclined plane? Explain the basic design of a screw. How does it work as a wedge? What is the value of understanding the principle upon which a screw works?

2) What is an auger? How does an auger work according to the principle of a wedge?

3) Upon what principle of physics is a drill designed? What is another tool that works upon the same principle? How are the two tools alike? How are they different?

Essay Topic 3

Discuss the following:

1) Using examples, explain how a heating element works and the principle(s) of physics behind the element working.

2) Explain how heat can be used to keep things cool. Be sure to discuss both the molecular principle related to cooling and the process of cooling itself in both an air conditioner and a refrigerator.

3) Research and discuss the cultural and environmental impact the ability to cool via an air conditioner and refrigerator has had.

(see the answer keys)

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