Introduction to Electricity

Created by NolanKramer 

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Protons

parts of an atom that carry a positive charge

Neutrons

parts of an atom that carry a neutral charge

Electrons

parts of an atom that carry a negative charge

Ions

charged atoms

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

Force

charged objects push/pull on other charged objects

Electric Field

a region around a charged particle that can exert a force on another charged particle.

3 Ways an object can become charged

1. Friction
2. Conduction
3. Induction

Friction

occurs when you rub something against something else

Conduction

occurs when electrons are transferred from one object to another by direct contact

Induction

occurs when charges are rearranged in an uncharged object without directly contacting a charged object

Conductors

materials that electric charges can move easily through

Insulators

materials that do not allow electric charges to flow through them

Static Electricity

a build-up of charges in an object...(these charges eventually leave the object)

Electric Discharge

a loss of static electricity as charges move off an object

Electric Current

delivers electrical energy to machines
(definition: flow of charges)

Batteries

made up of several cells that covert chemical energy into electrical energy

Voltage

the difference in energy between 2 points of a moving charge

Current

the total number of electrons flowing past a point each second

Amps

unit of current measurement

Resistance

opposition to a flow of electric charge (the higher the resistance, the lower the current)

Ohms

unit of resistance measurement

Electric Power

the rate at which electrical energy is used to do work

Watt

unit of measurement for power

Circuit

a complete closed path rghough wich electric charges flow

Series Circuit

a circuit in which all parts are connected in a single loop (has only 1 path for current tol flow)

Parallell Circuit

has more than one path for current to flow

Circuit breakers

limit the amount of current flowing through a wire

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