1. Energy Transformations

2. Law of Conservation of Energy
Energy is never created or destroyed.
The only thing that changes is the form in which energy appears.

3. Tracking Energy Transformations#1
Chemical  Motion
Chemical  Thermal

4. Changing Forms of Energy
In the world around you, energy is transforming continually between one form and another.

5. Changing Forms of Energy
#2 Forest fires as a result of lightning strikes.
Electrical -> Thermal

6. Tracking Energy Transformations
Because of friction, the mechanical parts of the bicycle are warmer, too.
Thermal energy is almost always produced by an energy transformation.
The energy transformations that occur when people exercise, when cars run, when living things grow and even when stars explode, all produce thermal energy.

7. Potential energy is converted into kinetic energy.
#3 A waterfall
Gravitational -> Motion

8. Energy Changes Form
Energy changes form, but the total amount of energy in the universe stays the same.

9. Energy Changes Form #4 -- Car Chemical  Motion Electrical  Sound
Electrical  Electromagnetic

10. Energy Changes Form
#5 Electrical  ?

11. #6 --- Electromagnetic - ?
Photosynthesis .
# Electromagnetic - ?