Ch Electricity I. Electric Charge (p ) Static Electricity

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Presentation transcript:

Ch. 16 - Electricity I. Electric Charge (p.530-536) Static Electricity Conductors Insulators Electroscope 1 1

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

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

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.

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

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

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