1.   The smallest possible negative charge is one ___

a) electron    (correct)
b) proton
c) Coulomb
d) Volt

2.   When I rub rabbit's fur on a plastic rod, the rod is charged because_______

a) charge was created by the friction
b) charge of one kind was separated from charge of the opposite kind by the friction.  (Correct)
c) the extra charge on the fur was shared with the rod.
d) The rod is a good conductor.

3.   If I do 10 Joules of work to separate 2 Coulombs of charge on a Wimshurst machine,
     what is the electric potential difference I've created in volts?

a) 20 V
b) 8 V
c) 12 V
d) 5 V     (Correct)

4.   A 12 volt battery drives a 2 Amp current.  What is the power being delivered, in watts?

A) 6 W
b) 0.17 W
c) 24 W   (correct)
d) 10 W


5.   The unit for electric current is Amps.  It is defined as

a) 1 Volt per watt
b) 1 Coulomb per Ohm
c) 1 Coulomb per second  (correct)
d) 1 Newton per meter

6.   An electric circuit needs a good conductor, because

a) Conductors are heavier.
B) Conductors have many charges which are free to move around.   (Correct)
c) Insulators don't provide enough resistance
d) Conductors have little openings in them for the charge from the battery to move through.


7.   Ohm's law says that circuits with a high resistance 

a) let less current through.  (Correct)
b) let more current through.
C) are hard to put together.
D) increase the voltage of the battery.

8.   You construct a circuit so that 2 Amps of current flow through a resistor of 4 Ohms. 
     What is power loss in watts in the resistor?

A) 8 W
b) 2 W
c) 16 W   (correct)
d) 32 W

9.   In order to create a current in a wire loop using a magnet, I must

a) move the magnet toward or away from the wire.
B) hold the magnet very still and close to the loop.
C) get a very strong magnet.
D) first create a current in the magnet.

10.  The north pole of a magnet would point in which direction in the earth's magnetic field?

A) To the north     (correct)
b) To the south
c) Down
d) Up