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

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 ElectricityStatic ElectricityStatic ElectricityStatic Electricity

Static Electricity

Static ElectricityStatic ElectricityStatic ElectricityStatic Electricity

Static Electricity

Static ElectricityStatic ElectricityStatic ElectricityStatic Electricity

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 RepulsionAttraction and RepulsionAttraction and RepulsionAttraction and Repulsion

Attraction and Repulsion

Static ElectricityStatic ElectricityStatic ElectricityStatic Electricity

Static Electricity

Like charges repelLike charges repelLike charges repelLike charges repel

Like charges repel

Like charges repelLike charges repelLike charges repelLike charges repel

Like charges repel

Opposite charges attractOpposite charges attractOpposite charges attractOpposite charges attract

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 ElectricityUses and Dangers of Static ElectricityUses and Dangers of Static ElectricityUses and Dangers of Static Electricity

Uses and dangers of static electricity

Electrostatic PrecipitatorElectrostatic PrecipitatorElectrostatic PrecipitatorElectrostatic Precipitator

Electrostatic precipitator

Static ElectricityStatic ElectricityStatic ElectricityStatic Electricity

Static electricity

Static ElectricityStatic ElectricityStatic ElectricityStatic Electricity

Static electricity

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