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This quiz consists of 5 multiple choice and 5 short answer questions through Part Four: Electricity and Automation.

Multiple Choice Questions

1. How does heat travel through heating elements?
(a) In groups of molecules.
(b) Radiation.
(c) Through inertia.
(d) Conduction and convection.

2. In what part of the atom does one find electrons?
(a) In both the nucleus and outer rings.
(b) The nucleus.
(c) They are not part of an atom.
(d) The outer ring.

3. What happens when visible rays cross the lens of our eye and are bent through the convex surface?
(a) They vibrate the iris.
(b) They vibrate the retina.
(c) The can burn out the cortex.
(d) They form an image on the retina.

4. In the illustration of how electricity is generated by a chemical reaction, what is the end result of the illustration?
(a) The copper turns green and the zinc becomes cloudy.
(b) A meltdown.
(c) An electrical shock.
(d) The copper turns green and the zinc turns brown.

5. What is applied to a lever to make it move?
(a) Work.
(b) Gravitational pull.
(c) Force.
(d) Balance.

Short Answer Questions

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

2. Where are wheels and axles found?

3. What occurs when very small atoms smash together?

4. What is the magnetic field caused by an electric force?

5. What turns the crankshaft in an internal combustion engine?

(see the answer key)

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