Page 108 - Science - 5

Muscular EnergyEnergyEnergy
Muscular
Muscular
Muscular energy is the energy that powers all your actions.
Muscular energy is used to do work.
Mechanical Energy
Mechanical EnergyEnergy
Mechanical
Energy that produces push and pull and therefore makes
things move, is called mechanical energy .

Knowledge Plus

Burning fuels such as coal, LPG and kerosene releases heat energy. In our

houses, we use heat energy to cook food.

Wind EnergyWind EnergyWind Energy
The energy of wind or moving air is used in windmills to pump out
water or for grinding wheat. Do you know that small amount of
electricity is produced if windmills are connected with a turbine.

Electrical
Electrical EnergyEnergyEnergy
Electrical
Electricity is a various form of energy. All electrical
appliances start working when the current passes through
them, such as cooler, fan, iron, mixer etc. Electrical energy
can be changed into mechanical energy, heat energy or

light energy.

Water Energy
Water EnergyWater Energy
The electricity produced by using the energy of falling
water is called water energy or hydroelectricity.

Heat EnergyHeat Energy
Heat Energy
The motion of atoms and molecules creates a form of

energy called heat or thermal energy . Heat energy
can change the state of matter.

Solar
Solar
Solar EnergyEnergyEnergy
The Sun is the most vital source of energy. Energy from the
Sun is called solar energy . Food can be cooked in solar
cookers by using heat from the Sun. Light from the sun can
be changed into electricity through special kind of cells.

Sound EnergySound EnergySound Energy

Sound energy is the energy produced by sound
vibrations as they travel through a specific medium.
Sound energy is produced by vibrations.

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