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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. Where are wheels and axles found?
(a) On all pulley systems.
(b) Wherever there is rotary motion.
(c) Where a spoke and center come together.
(d) Just on cars and bikes.

2. How does a ship vary in density?
(a) According to how much water is on board.
(b) According to how long it takes to get underway.
(c) According to its load.
(d) According to the speed it is making.

3. What do sound waves do to molecules?
(a) Skirt around them.
(b) Cause them to explode.
(c) Cause them to implode.
(d) Pass a vibration through them.

4. 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 work can cause energy to dissipate.
(c) Exploring the bonds of attraction and the movement of molecules to and from each other.
(d) The way atoms can be made more dense.

5. What turns the crankshaft in an internal combustion engine?
(a) Gear.
(b) Piston.
(c) Steam.
(d) Pulley.

Short Answer Questions

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

2. What happens when molecules are squeezed or stretched beyond the boundaries of their comfortable balance?

3. What is the principle that states energy is neither created nor destroyed?

4. What is one step in creating liquid crystal displays?

5. What are the effects of electricity?

(see the answer key)

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