# data[].attributes.body
Energy- is the ability to do work

The SI unit for energy is joules (J)

# data[].attributes.body
The chemical energy stored in a battery can change to the sound energy you hear from your mobile phones

The chemical energy in the food that we eat can change to kinetic energy when we move

Nuclear energy can change to electric energy. This electrical energy can change to sound energy, heat energy and kinetic energy in our homes

# data[].attributes.body
Energy dissipation is when the energy changes from a useful form to a not so useful form

E.g the food we eat provides the chemical energy we need to walk

# data[].attributes.body
•Kinetic energy

•Potential energy

•Sound energy

•Heat energy

•Chemical energy

•Electrical energy

•Solar energy

•Nuclear energy

# data[].attributes.body
The energy from the sun is referred to as solar energy.Solar energy can be used to heat water in specially designed glass pipes.This hot water is stored in a tank and can be used for baths,showers,washing clothes,etc.,so you will use less electricity or natural gas to heat your water.

•The energy change that occurs from solar energy to heat energy.

•A large amount of solar energy is dissipated.However,with improvements in design more and more of the solar energy is changed to useful heat energy.

# data[].attributes.body
A dynamo is a device for converting mechanical energy into electrical energy. Dynamos are often found built into the front wheel of a bicycle to power a light.

# data[].attributes.body
Sound energy is caused by the vibrations

E.g a speaker

# data[].attributes.body
Sankey diagrams are used to describe the energy efficiency of a steam engine

Sankey diagrams show the flow of energy to and from a device