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This quiz consists of 5 multiple choice and 5 short answer questions through Part 5: The Digital Domain and The Last Mammoth.

Multiple Choice Questions

1. Why can a dog hear a dog whistle that humans cannot?
(a) Their eardrums are larger.
(b) They have been trained to listen to that particular frequency.
(c) They can isolate a sound better than humans.
(d) They can hear sound waves at a greater range of frequencies.

2. What is the formula for work done?
(a) Distance plus effort.
(b) Distance divided by strength.
(c) Effort multiplied by distance.
(d) Effort times gravitational force.

3. What happens to the charge of an electron in a static electricity situation?
(a) The charge oscillates between negative and neutral.
(b) The charge oscillates between positive and neutral.
(c) The charge reverses.
(d) The charge becomes neutral.

4. What do machines that keep something cool do to heat?
(a) Remove it.
(b) Exchange it with cold material.
(c) Cause a change in velocity.
(d) Transpose it.

5. What is essential for running an autopilot program?
(a) A positive electrical charge.
(b) The correct electrical charge.
(c) Feedback.
(d) The right semiconductor.

Short Answer Questions

1. What is one component of a lever?

2. How many ways can heat travel?

3. If you put a copper wire and a zinc wire into a lemon, what occurs?

4. What causes increased heat in the process of conduction?

5. What controls the movement in a gear system?

(see the answer key)

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