ENERGY

ENERGY

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01 WHAT IS ENERGY?

Energy is present everywhere. Energy is the ability of an object to transform itself or to produce changes in other objects.

02 ENERGY PROPIERTIES

Energy can neither be created nor destroyed, energy can only be transferred from one object to another.

03 Energy transformations

Chemical energy Electrical energy Light energy

Energy in the air --- transformed in electricity -- transformed in thermal energy to warm a room

04 FORMS OF ENERGY

THERMAL ENERGY

MECHANICAL ENERGY

Energy that implies movement.

Energy in the form of heat.

ELECTRICAL ENERGY

LIGHT ENERGY

Comes from the flow of electrical charge.

Energy in form of light.

04 FORMS OF ENERGY

SOUND ENERGY

CHEMICAL ENERGY

Energy caused by vibrations.

Is found in substances like food and living things and also in batteries and fuel.

SOLAR ENERGY

EOLIC ENERGY

Energy coming from the sun.

Energy that comes from the wind.

LET'S PRACTISE!

ACTIVITY

ACTIVITY

ACTIVITY

ACTIVITY

NON- RENEWABLE ENERGY SOURCES

RENEWABLE ENERGY SOURCES

Renewable Energy Sources

Renewable energy sources refers to energy sources present in nature: the sun, the wind, the force of water or the inner of the earth are examples of renewable energy sources. They are present in nature and are naturally replenished that's why never run out.

Examples: - Solar energy - Eolic energy - Hydraulic energy _ Tidal wave energy - Geothermal energy (is generated form the heat stored in the earth)

Non- renewable Energy sources

Non- renewable energy sources refers to limited energy on the planet that don't replenish naturally.They are limited and that's why they may run out with use.

Examples:- Coal - Oil - Natural Gas - Nuclear Energy

Renewable or non-renewable?

Thanks for your attention!