Energy helps us do things.
It gives us light. It warms our bodies and homes. It bakes cakes and keeps milk cold. It runs our TVs and our cars. It makes us grow and move and think.
Energy is the power to change things.
It is the ability to do work.
Where does energy come from?
Generally, energy can be divided into solar energy, geothermal energy and nuclear energy. Solar energy can be transformed to other forms e.g. wind energy, hydro energy, ocean energy, petroleum and coal.
What is potential energy?
Potential energy is the stored energy of position.
It can be thought of as energy that is “stored” by any physical system.
It is called potential because, in its current form, it is not doing any work or causing any change in its surroundings.
What is kinetic energy?
The extra energy that an object possesses when it is in motion is known as kinetic energy.
This motion of the object can be in any possible direction, and there are several different types of motion by which an object can move.
What is mechanical energy?
Mechanical energy is the sum of energy in a mechanical system.
Mechanical energy exists as both kinetic and potential energy in a system.
Kinetic energy, the energy of motion, exists whenever an object is in motion.
Potential energy is based on the position of an object.
It can not cause any change on its own, but it can be converted to other forms of energy.
Changing Energy
Energy can be transformed into another sort of energy.
But it cannot be created AND it cannot be destroyed.
Energy has always existed in one form or another.
Heat Energy
Heat is a form of energy.
We use it for a lot of things, like warming our homes and cooking our food.
http://energyquest.ca.gov/index.html
http://www.energyeducation.tx.gov/
Energy Quest Room
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