A
Isolated electrical charges that do not move through a circuit.
Static Electricity
negatiely charged particle in an atom. Shown with a minus sign (-)
Electron
magnetism created by an electrical current as with an electromagnet
Electromagnetism
an experiment that has only one variable
controlled experiment
a material that allows electricity to flow through it, such as copper
Conductor
Pull toward
Attract
a natural magnet made of mineral magnetite; has north and south poles
loadstone
a switch that automatically stops the flow of too much electricity to protect electric circuits against overheating and damage
circuit breaker
a tool used to detect of measure electricity in a magnetic field
galvanometer
small parts that make up atoms
particles
push away from
Repel
the smallest part of a material that can exist either alone or combined with something else.
atom
a safety device for stopping an electrical current if the electrical circuit becomes overloaded
fuse
a device in which to collect and store electricity
Capacitor
a material that does not conduct electricity, such as rubber, plastic, or wook
insulator
to let go of electrical energy
discharge
a metal rod changed into a magnet by being surrounded by a wire carrying an electric current
electromagnet
any of a certain group of solids that conducts electricity more than an insulator but less than a conductor
semiconductor
a part of an experiment. It should be the ONLY thing that changes in tests of a hypothesis
variable
a practical unit of measurement of the quantity of electric charge
Coulombs
positively charged particle in an atom. shown with a plus sign (+)
proton
the space in which electricity and magnetism operates
force field
unlike charges attract eachother, and like charges repel each other; named after Charles Coulomb (1736-1806), who first discovered and described this behavior in 1785.
Coulomm's law
machine that produces electricity, also called a generator
Dynamo
an electrical unit of measurement
volt