parts of an atom that carry a positive charge
parts of an atom that carry a neutral charge
parts of an atom that carry a negative charge
Law of Electric Charges
like charges repel each other
& unlike charges attract
2 things that electric forces are effected by
1. size of charged particles
2. distance between charged objects
charged objects push/pull on other charged objects
a region around a charged particle that can exert a force on another charged particle.
3 Ways an object can become charged
occurs when you rub something against something else
occurs when electrons are transferred from one object to another by direct contact
occurs when charges are rearranged in an uncharged object without directly contacting a charged object
materials that electric charges can move easily through
materials that do not allow electric charges to flow through them
a build-up of charges in an object...(these charges eventually leave the object)
a loss of static electricity as charges move off an object
delivers electrical energy to machines
(definition: flow of charges)
made up of several cells that covert chemical energy into electrical energy
the difference in energy between 2 points of a moving charge
the total number of electrons flowing past a point each second
unit of current measurement
opposition to a flow of electric charge (the higher the resistance, the lower the current)
unit of resistance measurement
the rate at which electrical energy is used to do work
unit of measurement for power
a complete closed path rghough wich electric charges flow
a circuit in which all parts are connected in a single loop (has only 1 path for current tol flow)
has more than one path for current to flow
limit the amount of current flowing through a wire
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