SCIENCE 1119 CU 1

coulomb

• do not easily conduct electricity
• a simple electroscope
• unit of measurement for electrostatic force
• discharges into the ground

positive charge

• easily conduct electricity
• positive charge
• negative charge

insulators

• easily conduct electricity
• stationary electricity
• move easily from one atom to another
• does not easily conduct electricity

current electricity

• electricity in motion
• stationary electricity
• discharges into the ground
• do not contain free electrons

conductors

• producing electricity by rubbing
• deficit of electrons
• contain free electrons

friction

• contain free electrons
• producing static electricity by touching with a charge
• producing electricity by rubbing

positive charge

• surplus of electrons
• deficit of electrons
• normally insulators, but may become conductors

magnetism, electricity

• easily conduct electricity
• exert a force of attraction
• electricity in motion
• known to exert a force of repulsion

conductors

• deficit of electrons
• exert a force of attraction
• easily conduct electricity

insulators

• contain free electrons
• exert a force of attraction
• do not contain free electrons
• known to exert a force of repulsion