Static electricity

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• Things with opposite electric charges attract each other - these forces get weaker the further apart the objects are from each other.
• Electrical conductors - Materials that can conduct electricity. A current can flow through the object easily.
• Electrical insulators - Materials that don’t conduct electricity. A current cannot flow through the object.

A STATIC CHARGE CANNOT MOVE…

• Static charge - A charge which builds up in one place, and it is not free to move.
• A common cause of static electricity is friction. When two insulating materials are rubbed together, electrons will be rubbed off one, and dumped on the other.
• POSITIVELY CHARGED - electrons have been rubbed off.
• NEGATIVELY CHARGED - electrons have been rubbed on.

AS CHARGE BUILDS UP, SO DOES THE VOLTAGE…

• As electric charge builds up on an isolated object, the voltage between the object and the earth (zero volts) increases.