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Electricity (Materials Can Become Electrically charged (electric charge is…
Electricity
Materials Can Become Electrically charged
electric charge is a propertie of matter
Electric charge
Property that allows an object to evert physical force on another
electric field
The pace around a particle through which an electric charge can travel
Static charges are caused by the movement of electron
Static charge
a buildup of electric charge in an object caused by the presence of many particles with the same charge
Induction
the buildup of a charge without contact
Technology uses static electricity
Elecctric current is a flow of charge
Electric charge can flow contiuously
electric current
a flow of charge
ampere
the standard unit of measure for a charge
Calculating current
I=V/R
Electric cells supply electric current
Electric cell
produces electric current using the chemical or physical properties
primary cells (batteries)
produces electrical cutrrent through chemical reactions
storge cells (rechargeble batteries)
the current is reversed and as current flows both electrically into lead sulfate and the electrolyte changes into water
Charges can move from one place to another
Static charges have potential energy
electric potential
the amount of electric potential per unit charge at a certain position in an electric field
volt
equal to one joule of energy per coulomb of charge
Materials affect charge movement
conductor
a material that allows an electric charge to pass through easily
insolater
a material that does not allow an electric charge to pass easily
resistance
is the property of a material that determines how easily a charge can pass through
ohm
electrical resistance measured
grounding
providing a harmlesss, low resistance path to the ground, for electricity to follow