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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. Why is the mammoth at first overjoyed?
2. What do sensors and detectors measure?
3. Upon what numbers are codes in a binary system built?
4. What makes waves different from molecules?
5. How are signals and messages created out of light and radio waves?
Short Essay Questions
1. What are sensors and detectors? What do they measure?
2. What is current electricity? What is required to generate it?
3. What are the effects of electrons on the move?
4. How is magnetism caused?
5. Discuss the two types of lens, concave and convex.
6. What is a CPU and how is it illustrated by Macaulay?
7. How do some frequencies of electromagnetic wavers appear to our eyes? Which waves can we not see?
8. Explain how electromagnets keep machines running.
9. How is static electricity formed?
10. Describe some types of memory.
Essay Topics
Write an essay for ONE of the following topics:
Essay Topic 1
1) Fully explain the principle(s) upon which the lever works.
2) Archimedes is credited with saying, "Give me a place to stand on, and I will move the Earth." This statement was made in reference to his work with levers. Discuss fully, based upon your understanding of levers in The New Way Things Work, what you think Archimedes means.
3) Research the history of levers and write an informative essay about what you have learned. Include a discussion of the way three different levers work.
Essay Topic 2
Discuss the following:
1) Which is easier: To pull something down or to pull it up? Why? What is the relevance of this question to the concept of pulleys?
2) Discuss the various types of pulleys, giving examples of each type.
3) Research the history of pulleys and write an informative essay on what you find. Consider the following questions: When were they invented? By whom? Where? How were the first pulleys made? How are they made today? What materials have they used to make pulleys in the past? In the present? Are pulleys still an important tool today?
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.
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This section contains 925 words (approx. 4 pages at 300 words per page) |
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