Electricity is the flow of electrons.
The 3 major parts of an atom are the electron, proton and neutron.
Electrons have a negative charge, protons have a positive charge, and neutrons have no charge.
The nucleus of an atom contains protons and neutrons.
LAW OF CHARGES: Opposites attract and likes repel.
Centrifugal force is proportional to mass and speed.
Centrifugal force keeps an electron from falling into the proton.
Valence electrons are located on the outer shell of the atom.
Conductors are materials that conduct electricity easily.
The best conductors have 1 or 2 valence electrons. Copper is a good conductor.
Insulators are materials that do NOT conduct electricity easily.
Insulators generally have 7 or 8 electrons in the valence shell.
Electron impact can be used to knock electrons out of orbit.

A Coulomb is 6.25 x 10^18th electrons.
Ampere (A) = one coulomb per second past a given point.
Voltage is Electromotive Force (EMF), which is why E means volts.
Voltage may be thought of as electrical pressure.
Resistance to the flow of electricity is measured in ohms (the Greek Omega).
Wattage (P) is a measurement of electric power.
Ohm's Law - It takes 1 volt to push 1 amp though 1 ohm.
The formula for Ohm's Law is E=IR.
The formulas for Power are P=I*E, and P=I*I*R and P=E*E/R