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Electricity (Materials can become electrically charged (Electric charge is…
Electricity
Materials can become electrically charged
Electric charge is a property
Electric charge
is a property that allows an object to exert an electric force on another object without touching it
How Materials Affect Static Charging
Charging by contact occurs when one material's elctrons are attracted to another material more than they are attracted to their own.
Charging by induction
The buildup of a charge without direct contact.
Charge Polarization
Can build a charge by changing the position of electrons, even when electrons do not move between atoms.
Static charge
buildup of electric charge in an object cause by the presence of many particles with the same charge
Static charges are caused by the movement of electrons
Electric field
The space around a particle through which an elcetric charge can exert
Charges can move from one place to another
Electric Potential Energy
Potential energy is stored energy an object may have become of its position,
Electric Potential
amount of electric potential energy per unit charge at a certain position in an electric field,
Volt is equal to one joule of energy per coulomb of charge.
Lightning is a type of discharge.
A conductor is a material that allows an electric charge to pass through it easily.
A insulator is a material that does not easily allow a charge to pass through it .
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Electric current is a flow of charge
electric current is a flow of charge.
the unit for current is ampere
Ohm's Law is current=voltage/Resistance
electric cell produces electric current using the chemical or physical properties of different materials
Primary cells produce electric current though chemical reactions that continue until one or more of the chemicals is used up
Storage cells are producing current and maybe be discharging.
Solar cells absorb energy from the sun or other sources of light and then give off electrons.