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E N E R G Y

E N E R G Y. From of energy. Energy has many interchangeable forms viz. Heat Light Mechanical power electricity. NATURE OF ENERGY SOURCES. Some sources like fossil fuels on which the present they world depends the most are exhaustible. Similar are nuclear and energy .

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E N E R G Y

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  1. E N E R G Y

  2. From of energy • Energy has many interchangeable forms viz. • Heat • Light • Mechanical power • electricity

  3. NATURE OF ENERGY SOURCES • Some sources like fossil fuels on which the present they world depends the most are exhaustible. Similar are nuclear and energy . • Some sources are renewable-they rebirth everyday . • Solar wind wave .

  4. DEVELOMENT VSCONSUMPTION • Development is direct to the of energy. • The more you are more is the energy . • World primary energy demand. • 1972 :270 ej (1018 j) • 1985:390 ej • 2000:590 ej • 2020:840 ej

  5. SOURCES OF ENERGY • There are many sours of energy • Fossil fuels coal, oil and Nature gas • Biomass Energy ,energy from plants • Hydro power • Nuclear power

  6. Energy consumption • Cave Man (10,00,000)years ago 3kWh • Hunting man (1,00,000 years ago) 7kwh • Agricultural man (5000BC) 13kwh • Industrial man (20th century) 260kwh • advanced Technically man • (21stcentury) 410kwh++

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