vocabulary
a material that allows electricity to flow through it
conductor
Buildup of electric charges on objects
Static electricity
During a Thunderstorm, Yolanda saw a bolt of lightning strike a television antenna on a roof. Why do you think the lightening hit the antenna?
Negative charges at the bottom of a storm cloud jumped to the positively charged antenna
a material that does not allow electricity to flow through it
Insulator
Safety device that opens a circuit by melting
Fuse
Mark created a circuit for a science fair. He wanted to be able to open and close the circuit easily without connecting and disconnecting the wires. What device best suited his needs?
A switch
A circuit that has only one single path for the current to follow
Series Circuit
a switch that opens a circuit by turning itself off
Circuit breaker
What kind of circuit, series or parallel, is best for a set of holiday lights? Why?
A parallel because if one light goes out, the others will stay lit since the current has more than one path to follow.
a circuit that has more than one path for an electric circuit to follow
Parallel Circuit
A device that opens or closes a circuit
Switch
Darnell rubs two balloons over the wool carpet. What is most likely to happen to the balloons when he holds them close together?
They will repel each other
A thin wire inside a light bulb
Filament
electric circuit
Which material is most likely to be connected to the free ends of the wires circuit? Why?
aluminum foil