Electricity Review
1. a) All matter is made up of atoms. The three subatomic particles
that make up an atom are:
b)
Two types are charges are negative and positive. Negative charges are
caused by an excess of ____________. Positive charges are caused by a
__________ of electrons.
c) The law of electric charges states:
i)
ii)
iii)
d) Complete the following table:
Method of
Description of Process
Charging
Friction
See Textbook
Contact
Final charge
on Objects
Transfer of
Electrons
See Textbook
Induction
(Temporary)
See Textbook
2. a) A conductor is a __________________. An example of a good conductor
is _____________.
b) An insulator is a ___________________.
An example of a good insulator is ___________.
3. a) To ground an object simply connect a _____ to the _____________.
b) Discharging objects is easier when the air is
c) Four ways to discharge an object are:
i)
ii)
iii)
iv)
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