JC Physics
A. Roche 2010
What is Energy?
Energy is the ability
to do work or move
something.
Energy is measured in Joules (J).
Energy can exist in many forms.
What are the different forms of energy?
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Kinetic – Moving
Chemical – Fuel, Food & Batteries
Electrical
Potential – Gravitational or stored in shape
Light
Heat
Sound
Nuclear
Magnetic
What is
The Law of Conservation of Energy?
The Law of Conservation of
Energy states that:
Energy cannot be created or
destroyed
but can be converted from
one form to another.
Energy Conversions
• Kinetic
• Chemical
• Electrical
• Potential
• Light
• Heat
• Sound
• Nuclear
• Magnetic
Experiment
To convert Light energy to Electrical energy to Kinetic energy
Experiment
To convert Chemical energy to Electrical energy to Heat energy
Experiment
To convert Electrical energy to Magnetic energy to Kinetic energy
Renewable and Non-renewable
Energy Sources?
Renewable Energy
Sources wont run out.
Non-renewable Energy
Sources will eventually
run out.
Why is it important to try and save energy?
Nisha Kataria - Earth Song (2009)
Questions on Energy
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