1. Potential and Kinetic Energy

2. Energy is the ability to make something happen
What is Energy?
Energy is the ability to make something happen
Move something
Heat something
Physically change something
Light something

3. Types of Energy:
Motion energy
Heat energy
Electrical energy
Light energy
Sound

4. Kinetic Energy Potential Energy Categories of Energy: Energy of motion
Stored energy

5. Categories of Energy: Kinetic Energy Potential Energy Moving car
Flying rubber band
Fire
A car up on a hill
Stretched rubber band
Gasoline

6. Units of Energy
Energy is measured in Joules
Joules  J
Ex J

7. Potential Energy

8. 150 J of PE  150 J of KE
Kinetic Energy

10. Law of Conservation of Energy
Energy cannot be created or destroyed
Energy can only change forms
Example: Potential Energy stored in= Amount of Kinetic Energy released

11. Law of Conservation of Energy
Example: Potential Energy stored in gasoline is turned into Kinetic Energy by a car’s engine to get it up a hill
The car then has Potential Energy because it is up high.
When the car rolls down the hill, its Potential Energy is turned back into Kinetic Energy as it begins to move

12. PE stored in in the car turns back to KE as it rolls down the hill
PE stored is stored in the car because it is at the top of the hill
PE stored in gasoline is changed into KE by the car’s engine to get it up the hill

13. Potential energy stored in a car up on a hill

14. Kinetic energy of the car rolling down the hill

15. Potential energy of a stretched rubber band

16. Kinetic energy of the launched projectile

17. Potential energy of the chemicals in a match

18. Kinetic energy of a hot flame

19. PE/KE Interactive Sites