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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. What is a fulcrum?
(a) A point at which inertia is overcome.
(b) A pivot point.
(c) A special sort of wedge.
(d) A formula for determining energy needed to do work.

2. How many types of gears are there?
(a) Five.
(b) Four.
(c) One.
(d) Seven.

3. What is an absence of substance?
(a) Outer space.
(b) Gravity.
(c) A vacuum.
(d) Matter.

4. What is the density of salt water compared to fresh water?
(a) Salt water is denser.
(b) Fresh water is denser.
(c) They have the same density.
(d) It depends on their electrical charge.

5. What is electricity flowing through a wire?
(a) Ohms.
(b) Current.
(c) Resistance.
(d) Watts.

Short Answer Questions

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

2. What does the Mechanics of Movement explore?

3. What imparts movement into the air or water around them on a ship?

4. How many ways can heat travel?

5. Why does a thermos lose heat?

Short Essay Questions

1. How does the inclined plane require less strength for a task?

2. Discuss what happens when a driving force initiates movement.

3. Discuss the concept of floating.

4. How do heating elements work?

5. Define combustion. How is combustion used?

6. Discuss how sails are used on a boat.

7. How does a zipper work?

8. Describe how a door wedge works.

9. Define the two elements that explosives must contain.

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

(see the answer keys)

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