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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 flying, what is used to overcome weight from gravity?
2. Through what can heat not travel?
3. What are two things a sail can do for a craft?
4. What is another type of wedge the author mentions?
5. What is the action of something burning?
Short Essay Questions
1. Discuss the concept of floating.
2. How can electric heat keep things cold?
3. Explain thermal radiation.
4. How do heating elements work?
5. Upon what law of physics are the simple machines that are introduced in Part 1 governed?
6. What does the principle of the conservation of energy state? How does Part 1 relate to that principle?
7. Describe how a door wedge works.
8. How does the atom bomb work?
9. How does a ship use plimsoll lines?
10. Define combustion. How is combustion used?
Essay Topics
Write an essay for ONE of the following topics:
Essay Topic 1
Discuss the following:
1) Define the property of precession. How is precession related to wheels. How does precession help a rolling wheel stay upright? How does the rotating speed of a wheel affect precession?
2) What is inertia? How is it related to wheels? How does the weight of an object affect inertia? What does inertia resist? How does this resistance affect the movement of a wheel?
3) What is centrifugal force? How is the property of centrifugal force important ina clothes dryer?
Essay Topic 2
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.
Essay Topic 3
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.
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This section contains 974 words (approx. 4 pages at 300 words per page) |
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