energy in day today life

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Thinel Sahansa Jayawardana

ENERGY IN DAY TO DAY LIFE

Grade 9 Science

05/01/2023

05/01/2023 Thinel Sahansa Jayawardana

Energy is the ability to do Work OR produce a change in Matter.

What is Energy ?

05/01/2023 Thinel Sahansa Jayawardana

Energy is measured in Joules (J)

05/01/2023 Thinel Sahansa Jayawardana

We get the energy for our body

movements from foods

05/01/2023 Thinel Sahansa Jayawardana

Given below are the Sources of energy used for different purposes

05/01/2023 Thinel Sahansa Jayawardana

Sun

SUN is the main natural source of Energy.

It gives us Light and Heat energy.

Energy from the SUN is known as SOLAR Energy.

05/01/2023 Thinel Sahansa Jayawardana

05/01/2023 Thinel Sahansa Jayawardana

Solar Energy is used for various purposes.

Some of them are,

to genarate Electricity

To get Hot water for bathing

to Cook

05/01/2023 Thinel Sahansa Jayawardana

To generate Electricity – Solar Panels are used

Street Lights

For houses

Calculator

Solar Panels

05/01/2023 Thinel Sahansa Jayawardana

Solar cookers

05/01/2023 Thinel Sahansa Jayawardana

Solar HeatersSolar heaters are used for

heating water.

05/01/2023 Thinel Sahansa Jayawardana

BIO MASS

Plant or Animal material which can be used as fuel , are known as

BIO MASS

05/01/2023 Thinel Sahansa Jayawardana

05/01/2023 Thinel Sahansa Jayawardana

Fire wood is used for cooking purposes and

burning of bricks.

05/01/2023 Thinel Sahansa Jayawardana

Saw dust is used in saw dust stove.

05/01/2023 Thinel Sahansa Jayawardana

BIO GAS

WE can produce BIO GAS using kitchen wastes

and animal waste matter

05/01/2023 Thinel Sahansa Jayawardana

Energy running water

When water is stored in a tank [reservoir] it has potential energy . This

potential energy of water can be use to produce

ELECTRYCITY .In hydro power stations

like Lakshapana , electricity is produced by the potential energy of

water .

05/01/2023 Thinel Sahansa Jayawardana

Model of a Hydroelectric Power station

05/01/2023 Thinel Sahansa Jayawardana

Energy conversion in hydroelectric power station

resevoir Running water generator

Potenialenergy

Kineticenergy

Electric energy

05/01/2023 Thinel Sahansa Jayawardana

Types of fossil fuelsCoal

Petroleum oil

Crude oil

Natural gas

05/01/2023 Thinel Sahansa Jayawardana

Thank you

THE END

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