2. Potential and Kinetic Energy

3. How is all energy divided? Potential Energy Kinetic Energy All Energy Gravitation Potential Energy Elastic Potential Energy Chemical Potential Energy

4. What is Potential Energy? oEnergy that is stored and waiting to be used later

5. What is Gravitational Potential Energy? oPotential energy due to an object’s position oP.E. = mass x height x gravity height x gravity Don’t look down, Rover! Good boy!

6. What is Elastic Potential Energy? oPotential energy due compression or expansion of an elastic object. Notice the ball compressing and expanding

7. What is Chemical Potential Energy? oPotential energy stored within the chemical bonds of an object

8. What is Kinetic Energy? oEnergy an object has due to its motion oK.E. =.5(mass x speed 2 )

9. THE TRADE OFF Between Potential & Kinetic Energy

10. Law of Conservation of Energy- Energy can neither be created nor destroyed. Energy is always changing from one kind to another. The total energy of an object never changes. Conservation of energy states that Ki + Pi = Kf + Pf. This simply means that the sum of the skiers initial potential and kinetic energy is equal to the sum of the skiers final potential and kinetic energy.