1) Which of the following is true about electric charges? a) like charges attract, unlike charges repel
b) like charges repel, unlike charges attract
c) All charges are repelled by all other charges
d) All charges are attracted to all other charges

2) Two 4x10-6 C charges are separated by 0.2m. What will be the electric force between them?
a) 3.6N
b) 3600N
c) 0.72N
d) 720N

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3) If you double the distance between two charges the electric force will be
a) twice as large
b) Four times as large
c) ½ as large
d) ¼ as large

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4) Materials in which electric charges flows easily are called
a) ammeters
b) voltmeters.
c) Insulators
d) Conductors

5) The units of electric charge are
a) Volts
b) Amperes
c) Coulombs
d) Ohms

6) What is the direction of the electric field at point P (see diagram)?
a) right
b) left
c) up
d) down
P
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