STATIC ELECTRICITYSTATIC ELECTRICITY

BY BY GLENN AQUILINA, GLENN AQUILINA,

MATTHEW CAMILLERI &MATTHEW CAMILLERI &CAIN ABLE BUTTIGIEGCAIN ABLE BUTTIGIEG

Class 4.5Class 4.5

Atom

Everything is made up of atoms. Atoms are made up of protons, neutrons and electrons. An object becomes charged when its atoms have more protons than electrons or more electrons than protons.

ATOM

In the middle there are:

PROTONS (+) AND NUETRONS

In the outer part there are:

ELECTRONS (-) (free to move)

Charges

Protons are positively charged (+) Electrons are negatively charged (-)

Neutrons have no charge..

The charge of one proton is equal in strength to the charge of one electron.

How Static Electricity Works

When protons and electrons meet a small shock is felt.

The same thing happens when you touch the T.V. screen.

Charging polythene by rubbing

A charged polythene gets negatively charged when rubbed.

Charging perspex by rubbing

A charged perspex gets positively charged when rubbed.

Attraction and repulsion

Induction Charged object attracted by a neutral object

Electrons in the wall will repel and so becomes positively charged so

the balloon is attracted

Charging by induction

Earthing

This method is used to make the spheres neutral.

Sphere A will gain electrons

Sphere B will lose electrons