1. Ch. 16 - Electricity I. Electric Charge (p.530-536) 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

5. Lightening 1 The clouds, air and ground are all neutral.
As turbulence of particles occurs in the clouds, by friction, the clouds become charged (polarized)
By induction, the ground gets charged (polarized)
Then a discharge occurs!!! Cloud to Cloud, or to air, or to ground.

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

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

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