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cards electricity
the title says iit all
17
Science
8th Grade
06/02/2010

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Term
Electricity
Definition
the movement of charged particles by moving electrons
Term
charge
Definition
a physical property that produces one elctric form of attraction on repulsion
Term
Static electricity
Definition
buildup of elctrons on a stationay object
Term
Friction(1st way of charging)
Definition
transfer by rubbing electrons with eachother
Term
conduction(2nd way of charging)
Definition
transfer of thermal energy and electrons by touching eachother
Term
Induction(3rd way of charging)
Definition
transfer of objects by second objects electric field
Term
current
Definition
the flow of elctrons through a circuit (amps)
Term
Voltage
Definition
the amount of force needed to move a charge through a circuit (volts)
Term
Resistance
Definition
Opposition to the flow of electrons (ohms)
Term
Ohhms Law
Definition
current=voltage/resistance
Term
Alternating current
Definition
when the movement of electric charge periodically reverses direction. Comes from outlets
Term
Direct Current
Definition
the flow of electric charges in one direction... low voltage
Term
conductor
Definition
a material that conatins an electric charge ie. metals
Term
insulator
Definition
a material that resists electric charge
Term
Parts of a circuit
Definition
voltage source__+/__-
Load (uses electricity)
Switch --o\o__
conductor (wire)
Term
series circuit
Definition
a circuit that only has one way for electrons to flow
Term
parallel circuit
Definition
a circui that has many ways for electrons to flow
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