The New Way Things Work Test | Mid-Book Test - Hard

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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 is any engine that burns fuel inside the engine?

2. What are small propellers mounted in the base of a ship's hull?

3. What is another type of wedge the author mentions?

4. What is the transfer of heat through infrared rays?

5. What is the resistance of an object to any change in its speed or direction?

Short Essay Questions

1. How do power crafts control their direction?

2. What rays does the sun emit? How do those rays react to an object?

3. Upon what law of physics are the simple machines that are introduced in Part 1 governed?

4. Discuss the four types of gears.

5. Discuss the concept of floating.

6. How can electric heat keep things cold?

7. Discuss how sails are used on a boat.

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

9. Define the two elements that explosives must contain.

10. What is an airfoil and how does it work?

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

Discuss the following:

1) Define the term vacuum.

2) How does a thermos use the principle of a vacuum to keep things hot or cold? Why does a thermos ultimately lose its heat or cold?

3) What is combustion and how is it explained at the molecular level?

4) How do combustion machines take advantage of the principle of combustion?

5) Explain how explosives work and what components must be present in an explosive.

Essay Topic 2

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 3

Discuss the following:

1) How does Macaulay use the term wheel and axle?

2) How is the wheel and axle related to a screwdriver? To the Hand Drill? A wrench?

3) Do you think the wheel and axle discussed in The New Way Things Work is an important invention? Why or why not.

4) Research the history of the screwdriver. When was it invented? By whom? Where? How were the first screwdrivers made? How are they made today?

(see the answer keys)

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