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 the term for the process of molecules moving further apart in convection?

2. What is the result of a collision of molecules which break on impact forming new and different molecules?

3. In flying, what is used to overcome weight from gravity?

4. How does heat travel through heating elements?

5. What is a first-class lever?

Short Essay Questions

1. Discuss fulcrum points as pertaining to levers.

2. How do power crafts control their direction?

3. Define the two elements that explosives must contain.

4. Discuss the concept of floating.

5. What determines if an object will float?

6. How does a zipper work?

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

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

9. Define combustion. How is combustion used?

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

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

Discuss the following:

1) Describe the effect of heat upon molecules and give an example.

2) What are the three ways heat travels?

3) Define thermal radiation.

4) Define conduction and give at least one example of it.

5) Define convection and give at least one example of it.

6) Discuss the rays which the sun emits. What happens when the rays reach an object?

Essay Topic 2

In Part One, The Mechanics of Movement, states that to understand the way things work, one needs to understand the underlying principles. Discuss the following:

1) Discuss the principles/laws of physics that underpin all of the various tools and machines presented in The New Way Things Work.

2) Thoroughly discuss the wedge. How is it used? Upon what principles of physics is it based? What are some common wedges? What is the most complex wedge that is discussed?

3) How often do you think you use a wedge during the course of your everyday life? Do you think it is important to understand the underlying principles of a wedge? Why or why not? Do you think it is interesting to understand upon what basis something such as a zipper was created?

Essay Topic 3

Discuss the following:

1) How do gears work? Why would you add a belt to a gear? Explain the different ways two gears can work.

2) What is the effect of speed on gears? What about size?

3) Define the four different types of gears and their purposes.

4) Research the history of gears. When were they invented? By whom? Where? How were the first gears made? How are they made today? What materials have they used to make gears in the past? In the present? Are gears still an important tool today?

(see the answer keys)

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