1.When two different insulating materials are rubbed together they become electrically charged. 2.Negative charges (electrons) rub off one material onto.

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Presentation transcript:

1.When two different insulating materials are rubbed together they become electrically charged. 2.Negative charges (electrons) rub off one material onto the other. The material which gains negative charges becomes negatively charged. The material which loses negative charges becomes positively charged. Static Electricity

1.Electrically charged objects can attract small objects 2.Two positively charged objects will repel 3.Two negatively charged objects will repel 4.A positively charged object and a negatively charged object will attract Attraction and Repulsion

Static Electricity

Like charges repel

Opposite charges attract

1.Static electricity can be used in photocopiers, smoke precipitator, and spray painting 2.A charged object can be discharged by connecting it to earth with a conductor 3.Static electricity can be dangerous (e.g. lightning). If the voltage becomes too great the negative charges can jump a gap causing a spark. This spark could ignite a flammable liquid nearby. Uses and Dangers of Static Electricity Uses and dangers of static electricity

Electrostatic Precipitator Electrostatic precipitator

Static Electricity Static electricity

Static Electricity Static electricity

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