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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. What happens when a magnetic field flows from a magnet into metal?

2. What is one step in creating liquid crystal displays?

3. What is one phenomenon a measurement of force measures?

4. What is the meaning of the acronym LASER?

5. What makes it possible to use light and radio waves to communicate?

Short Essay Questions

1. How is artificial light created?

2. How do some frequencies of electromagnetic wavers appear to our eyes? Which waves can we not see?

3. What topic does Part 5 cover?

4. Discuss the two types of lens, concave and convex.

5. Explain in detail the forming of static electricity.

6. How does Bill record the binary numbers of the mammoth's physical presence?

7. What are bar codes?

8. What are electrons? What does their movement create?

9. Discuss the composition of light.

10. What are analog quantities and how are its levels described?

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

One of the greatest impacts upon modern society is the invention of the internal combustion engine. Discuss the following:

1) What is an internal combustion engine?

2) Compare an engine that uses gas to one that is used in a jet.

3) Do you think the overall impact of the internal combustion engine in the modern world has been positive or negative? Explain your answer.

4) What engine preceded the internal combustion engine and what did this engine precipitate? Explain how this engine works.

Essay Topic 2

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.

Essay Topic 3

Discuss the following:

1) Explain the basic nature of all springs.

2) What are the three purposes of springs? Give an example of how a spring serves each purpose in a tool or machine. Explain how the spring serves the purpose.

3) When is energy stored in a spring? Give an example of this. What releases that energy?

4) Research the history of springs. When were they invented? By whom? Where? How were the first springs made? How are they made today? What materials have they used to make springs in the past? In the present? Are springs still an important item today? Give several examples of tools and/or machines that use springs. Can you explain how the spring functions in each?

5) Do you think a bungee jumper uses one or more principles of springs? Explain your response.

(see the answer keys)

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