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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 the principle behind the action of any machine?
(a) The amount of energy it saves.
(b) The type of energy it takes to make the machine work.
(c) The conservation of energy.
(d) The amount of energy it expends.

2. What are tanks that take in water to increase the density of the craft?
(a) Ballast.
(b) Rolling.
(c) Bilge.
(d) Variable.

3. What are different level marks for different types of water on the side of a ship called?
(a) Flow marks.
(b) Horizon marks.
(c) Anchor marks.
(d) Plimsoll lines.

4. What is the result of a collision of molecules which break on impact forming new and different molecules?
(a) Fusion.
(b) Combustion.
(c) Radiation.
(d) Fission.

5. How do mirrors reflect an image?
(a) As if it were a concave lens.
(b) Without distortion.
(c) Inversed.
(d) As if it were a convex lens.

Short Answer Questions

1. Where can the electromagnetic fields exist that sound waves cannot?

2. What is the effort you put in combined with the distance over which the effort is done?

3. What do machines that keep something cool do to heat?

4. What are two things a sail can do for a craft?

5. What does the Mechanics of Movement explore?

(see the answer key)

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