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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 on theme: "1.When two different insulating materials are rubbed together they become electrically charged. 2.Negative charges (electrons) rub off one material onto."— Presentation transcript:

1 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

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4 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

5 Static Electricity

6 Like charges repel

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8 Opposite charges attract

9 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

10 Electrostatic Precipitator Electrostatic precipitator

11 Static Electricity Static electricity

12 Static Electricity Static electricity

13 Quiz Quiz

14 Wordsearch Wordsearch


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