ELECTRICITY!

PART 1 – ELECTRIC CHARGE AND

STATIC ELECTRICITY

WE KNOW THE FOLLOWING:• THE CHARGE ON A PROTON IS (+)• THE CHARGE ON AN ELECTRON IS (–)• CHARGES THAT ARE THE SAME REPEL • CHARGES THAT ARE DIFFERENT ATTRACT• THE FORCE BETWEEN CHARGED OBJECTS

IS CALLED AN ELECTRIC FORCE

AN ELECTRIC FIELD is a region around a charged object where an electric force is exerted on other

charged objects.

We also know that the buildup of charges on an object is called

STATIC ELECTRICITY

There are four ways that a static charge can build up:

1. Friction 2. Conduction3. Induction 4. Polarization

Remember! Friction – Objects rubbed together.Conduction – The objects touchInduction – The objects do not touch

Static Discharge refers to the loss of static electricity as electric charges transfer from one object to another. Static discharge often produces a spark!

Lightening bolts form when negative charges at the bottom of clouds build up and the Earth’s surface becomes

positively charged.

Electrons jump between the clouds and Earth’s surface, producing a

giant spark of lightening.

Man struck by lightening?

Man struck by lightening…