Directions:  This is a quiz on current flow

Answer the following questions. When you are done, click the Check Answers button at the bottom of the page.
1. Can static electricity become DC electricity?
a. No, because they are different types of
        electricity
b. Yes, if you put the charges on different

         sides of a conductor
c. Yes, if you change the electrons to
         positive charges
d. Yes, if the static is strong enough
e. None of the above.

2. What is direct current (DC) electricity?
a. The movement of atoms in copper wire
b. The flow of electrons through a conductor
c. The flow of charges through an insulator
d. The direct movement of electrons to
         positive charges

e. None of the above

3. What is a good explanation of DC electricity?

a. A wire must be in direct contact (DC) with
        the source of current
b. Electrons flow along the surface of a wire
        after collecting on one end
c. The movement of atoms through
        a conductor
d. Electrons flow through a wire similar
        to water flowing though a hose

e. None of the above

4. What is electrical voltage?
a. The amount of current flowing
         through a wire
b. The internal friction to electricity in a wire
c. The electrical potential or pressure
         supplied by a battery or a generator

d. The power of a magnetic force field
e. None of the above

5. What is an ampere?

a. The amount of current flowing
         through a wire

b. The internal friction to electricity in a wire
c. The electrical potential or pressure
         supplied by a battery or generator
d. The size of the electromagnetic field
e. None of the above

6. What is an ohm?
a. The amount of current flowing through
        a wire
b. The electrical potential or pressure provided
         by a battery or a generator 
c. The amount of static present in a material
d. The internal friction to electricity in a wire
e. None of the above

7. What happens when electrons meet resistance in a wire?
a. The electricity or electron flow stops
b. The wire gets warm or even hot
c. The conductor reverses its polarity
d. There is no resistance in a conducting wire
e. None of the above

8. Which has greater resistance: a thin wire or a thick wire
    of the same material?
a. Both are the same, because thickness has
        nothing to do with resistance
b. A thin wire, because it is more difficult for
        the electrons to pass through
c. A thick wire, because there is more
        material for the electrons to pass through

d. The thin wire because it is so fragile that
         the electrons  escape into the air
e. None of the above

9. What is one major advantage of a DC circuit over static
    electricity?
a. You can turn it on an off with a switch
b. You can cause sparks whenever you want
c. You can use a battery
d. You don't need to use electromagnets to
         help generate the electricity
e. None of the above

10. Why are parallel circuits used in your home?
a. They are much safer and economical
         to use
b. So you don't have to replace burned
        out bulbs
c. So you can use Christmas lights in your
        home safely
d. So you can turn lights on and off
         independently

e. None of the above.