Electricity 1
Material in which electrons can NOT move easily
Insulator
Providing a path for electric charges to flow safely into the ground
grounding
Any object that attracts some metals and attracts or repels other magnets
magnet
Magnet that is always a magnet
Permanent magnet
The movement of electrons
Electric current
Material in which electrons CAN move easily
Conductor
Neutral Charge
Invisible area around a magnet in which the magnetic force acts
magnetic field
magnet created by wrapping a current-carrying wire around a piece of metal
Electromagnet
Electric circuit with more than one path to follow
parallel circuit
If an object has more protons than electrons
Positive Charge
Electric current that flows in one direction
Direct current
Magnet that quickly loses its magnetic field after being removed from a magnetic field
temporary magnet
Magnetic poles
A device that changes the the voltage of an alternating current
transformer
Amount of electric energy a source produces
Voltage
A measure of how difficult it is for electric current to flow in a material
Electric Resistance
Any material that is strongly attracted to a magnet
magnetic material
Force of attraction or repulsion between poles of two magnets
magnetic force
an electric current that changes direction in a regular pattern (back and forth)
Alternating Current
Electric circuit with only one path for current to flow
series circuit
An unbalanced charge stored up on an object
static charge
Elements (Iron, Nickel, Cobalt) that have an especially strong attraction to magnets
Ferromagnetic Elements
Device that uses a magnetic field to transform mechanical energy to electric energy
Electric Generator
a device that uses an electric current to produce motion
electric motor