Electricity

Energy

Ability to do work

S.I unit for energy

Joule, (J)

Energy

Cannot be created nor destroyed

Energy

Can exist in various forms

Forms of energy

Sound energy, kinetic energy, elastic potential energy and light energy

Sources of energy

The Sun, wind, water, wave and radioactive substance

Electrostatic charges

Transfer of electric charges between our body and other object that has static electric charges

Electric charge

Consist of positve and negative charges

Proton

Positive charges

Electron

Negative charge