Energy Sources Grade 11 Geography

What is Energy?  In Layman terms, Energy is the amount of force or power when applied can move one object from one position to another or Energy defines the capacity of a system to do work. Energy exists in everybody whether they are human beings or animals or non living things for eg: Jet, Light, Machines etc..

Forms Of Energy  Energy can have many forms: kinetic, potential, light, sound, gravitational, elastic, electromagnetic or nuclear. According to the law of conservation of energy, any form of energy can be converted into another form and the total energy will remain the same

What are the sources of energy?  What are the sources of energy?  Energy are broadly classifies into two main groups: renewable and Non-renewable. Examples of Non Renewable: Coal, Oil, Gas, etc. Examples of Renewable: Solar, Wind, Tidal,etc.

Non Renewable Sources  Non Renewable energy is energy which is taken from the sources that are available on the earth in limited quantity and will a few years from now. Non- renewable sources are not environmental friendly and can have serious affect on our health. They are called non-renewable because they can be re-generated within a short span of time. Non-renewable sources exist in the form of fossil fuels, natural gas, oil and coal.

Location

NATURAL GAS  Disadvantages  Non Renewable  This harms the atmosphere on combustion but the damage is relatively less compared to other fossil fuels  Causes Explosions  Advantages  Comparatively Clean fuel  Easy to transport which means it is a non volatile fuel

OIL  Disadvantages  Non Renewable  Short Lifespan of 50 years  Low Reserves  Causes pollution to the  Advantages  Caters to a variety of uses  Easy to transport and non volatile  Efficient Fuel  Less polluting than coal.  Used even in the manufacturing industry to make plastics, paints, etc.

COAL  Disadvantages  Advantages

NATURAL GAS  Disadvantages  Advantages