Electricity Flashcards
Electric current
The steady flow of electric charges, usually in a wire
GFCI outlet
A special outlet with a safety switch that instantly switches off in some dangerous situations to help prevent a shock
Generator
A device that uses a magnet to change mechanical energy into electrical energy
Kilowatt hour
A unit used to measure the amount of electrical energy used
Lightning
A giant spark of electric charges moving between a cloud and another cloud or within a cloud
Switch
The part of a circuit that closes the circuit and allows electricity to flow or opens the circuit and prevents the flow of electricity
Volt
A unit used to measure how strongly the electrons in a wire are pushed
Watt
A unit used to measure how fast electrical energy is used
Static electricity
Electricity at rest
Proton
A particle in an atom that has a positive electrical charge
Neutron
A particle in an atom that has no charge
Electron
A particle in an atom that has a negative electrical charge
Electrons sometimes move . . .
From one object to another
Objects can be uncharged, _________ _________, or __________ __________.
Objects can be uncharged, POSITIVELY CHARGED or NEGATIVELY CHARGED.
Opposite charges _________ while same charged objects _________.
Opposite charges ATTRACT while same charged objects REPEL.