Vocabulary - Circuit Puzzles
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Vocabulary
STUDENT RESOURCE PAGE 4.1
INFORMATION SHEET
circuit a path through which electric
conductor a material that current can
charges fl ow
pass through easily
Electric charges fl ow only in a
A good conductor has low resistance
closed circuit. A closed circuit forms a
to the fl ow of electric charges. Metals,
continuous, unbroken loop. Electric
like aluminum, gold, and copper, are
charges cannot fl ow through an open
often good conductors of electricity.
circuit. An open circuit is one containing
Solutions that contain ions also are good
a break, such as a burned out bulb, that
conductors. A material that resists, but
stops electric charges from fl owing.
does not stop, the fl ow of electric charges
is a poor conductor. The fi lament of a light
bulb is an example of a poor conductor.
Pure water is also a poor conductor of
electricity.
ELECTRICITY • SECTION 4 CIRCUIT PUZZLES
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