Transcript Static Electricity - Framwellgate Cluster

Static Electricity
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
Static Electricity
Attraction and Repulsion
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
Static Electricity
Like charges repel
Like charges repel
Opposite charges attract
Uses and Dangers of Static Electricity
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.
Electrostatic Precipitator
Static Electricity
Static Electricity
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