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This quiz consists of 5 multiple choice and 5 short answer questions through Part 3, Working with Waves.

Multiple Choice Questions

1. What is one type of ray that human eyes cannot perceive?
(a) Any red spectrum rays.
(b) Any yellow spectrum rays.
(c) Any black spectrum rays.
(d) Microwaves.

2. What urges do molecules possess?
(a) The urge to huddle together or spread apart.
(b) None.
(c) Only the urge to spread apart.
(d) Only the urge to huddle together.

3. What are two things that can happen to light rays?
(a) They can be reflected or absorbed.
(b) They can be dissipated.
(c) They can be dissolved.
(d) They can be destroyed by gamma rays.

4. What is the most common form of inclined plane found in machines?
(a) The wedge.
(b) The rods.
(c) The rocker.
(d) The pully.

5. Upon what does the amount of upthrust of an object in water depend?
(a) On how much water the object displaces.
(b) On whether or not the object is greater than one centimeter in diameter.
(c) On what the water's electrical charge is.
(d) On what the object's salinity is.

Short Answer Questions

1. As the frequency speed increases, what happens to the pitch?

2. What contains one element which is the detonator and another reactive element which acts as the propellant?

3. What do compound levers contain?

4. What are the effects of electricity?

5. Why can a dog hear a dog whistle that humans cannot?

(see the answer key)

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