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Static Electricity

Static Electricity. Most objects have no overall charge and are neutral. Uncharged objects become charged by gaining or losing electrons. Loses electrons it has more protons OR (+) charges and has an overall POSITIVE (+) charge

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Static Electricity

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  1. Static Electricity • Most objects have no overall charge and are neutral. • Uncharged objects become charged by gaining or losing electrons. • Loses electrons it has more protons OR (+) charges and has an overall POSITIVE (+) charge • Gains electrons it has more electrons OR (-) charges and has an overall NEGATIVE (-)charge • THE BUILDUP OF CHARGES IS CALLED • STATIC ELECTRICITY

  2. Static Electricity • Charges build up on an object, but they do not flow continuously.

  3. Transferring Charge • There are three methods by which charges can be transferred to build up static electricity: charging by friction, by conduction, and by induction.

  4. TRANSFERRING CHARGES • Friction: 2 uncharged objects rub together, some electrons move from one object to another • Conduction: a charged object touches another object, electrons can be transferred • (more negative to more positive) • Induction: movement of electrons to one part of an object that is caused by the electric field of a second object

  5. Transferring Charge • Electroscopes are instruments that can be used to detect the presence of a charge.

  6. Static Discharge: The loss of static electricity as electric charges transfer from one object to another is called STATIC DISCHARGEproduces a spark because the moving electrons heat the airLIGHTNING is an example of Static discharge.

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