What is Energy? : What is Energy? Different Kinds of Energy
What is Energy? : What is Energy? The ability to make things move
Can you make things move? : Can you make things move? Then you have energy…
…but there are seven different kinds of energy…
Chemical Energy : Chemical Energy What holds atoms in molecules together
Can be released by chemical reactions like burning wood
Electrical Energy : Electrical Energy The movement of electrons through matter
Electricity is a form of electrical energy
Heat Energy : Heat Energy The random motion, or vibration, of atoms in matter
The faster the atoms vibrate the more heat energy they have
Light Energy : Light Energy The energy carried by light
Yes, whenever you are looking at light, you are looking at energy
Mechanical Energy : Mechanical Energy The energy of moving things
When you ride a bike you use mechanical energy
Nuclear Energy : Nuclear Energy Holds protons and neutrons together in an atom’s nucleus
Powers the sun and nuclear power plants
Sound Energy : Sound Energy Vibrates air molecules
The air molecules move tiny bones in your ear
The message of sound then moves to your brain
Can also vibrate objects
Energy can be changed from one form to another : Energy can be changed from one form to another Chemical energy in gasoline is changed to heat energy and then to mechanical energy in a car