Electrostatics

Physics Chapter 1

Electricity

flow of electric charge

Electrostatics

Electric charges at rest

Electrodynamics

moving electric charges

Neutrons

neutral

Electrons

negative charge

Protons

positive charge

Elementary charge

the smallest amount of charge

Charge

fundamental property of subatomic particle

Conductors

valence electrons are freely moving

Insulators

electrons are tightly bound to the atom

Conductivity

Measure of the ease at which an electric charge moves through a material

Semiconductors

Intermediate between conductors and insulators

Semiconductors

Conductivity is low compared to conductors but high compared to insulators

Superconductors

Practically no resistance to the flow of charges below some critical temperature

Charging

When electrons move from one material to another

Friction

Two materials rubbed together

Elecyron affinity

tendency of an atom to become negatively charged

Triboelectric series

increasing electron affinity from top to bottom