1. Ch. 21 - Electricity I. Electric Charge (p.592-597) Static Electricity
Conductors
Insulators
Electroscope 1 1

2. A. Static Electricity Static Electricity
the net accumulation of electric charges on an object
Electric Field
force exerted by an e- on anything that has an electric charge
opposite charges attract
like charges repel

3. A. Static Electricity Static Discharge
the movement of electrons to relieve a separation in charge

4. B. Conductors Conductor
material that allows electrons to move through it easily
e- are loosely held
ex: metals like copper and silver

5. C. Insulators Insulator
material that doesn’t allow electrons to move through it easily
e- are tightly held
ex: plastic, wood, rubber, glass

6. D. Electroscope Electroscope
instrument that detects the presence of electrical charges
leaves separate when they gain either a + or - charge