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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. How does a wedge move an object up an inclined plane?
(a) It forces the object to reduce the effects of gravity.
(b) It uses the effect of gravity.
(c) It doesn't ; the wedge moves the plane itself to raise an object.
(d) It lowers the plane so the object slides.

2. In flying, what is used to overcome weight from gravity?
(a) Lift created by the airfoil.
(b) Lift created by the nose.
(c) Lift created by the tiller.
(d) Lift created by the rudder.

3. What happens if the edges of the two wheels touch?
(a) The rotation of one will cause the other to rotate.
(b) Nothing unless they have cams.
(c) The one will stop the other wheel.
(d) The one wheel will wear out faster than the other.

4. What imparts movement into the air or water around them on a ship?
(a) Propellers.
(b) Cams.
(c) Levers.
(d) Bits.

5. What is the main idea in Part 2 of the book?
(a) The way force can be exerted to change atomic structure.
(b) The way atoms can be made more dense.
(c) Exploring the bonds of attraction and the movement of molecules to and from each other.
(d) The way work can cause energy to dissipate.

Short Answer Questions

1. What pumps refrigerant out in an air conditioner?

2. What additional tasks can a boat with two triangular sails do?

3. What occurs when very small atoms smash together?

4. Where are wheels and axles found?

5. What debris does a nuclear explosion create?

Short Essay Questions

1. How do heating elements work?

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

3. How does a ship use plimsoll lines?

4. Discuss fulcrum points as pertaining to levers.

5. What determines if an object will float?

6. Discuss the two principles upon which propellers and rudders work in a boat.

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

8. Discuss the four types of gears.

9. Discuss the concept of floating.

10. Explain thermal radiation.

(see the answer keys)

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