Conservation of Energy

1
Conservation of Energy

• Section 2

2
Changing Forms of Energy

• Electrical energy
• Chemical energy
• Mechanical energy

3
Conservation of Mechanical Energy

• Swing
• Roller coaster ride
• A constant change in energy from potential to
  kinetic

4

• The total energy of the system remains constant
• The energy changes from one form into another

5

• Energy cannot be created nor can it be destroyed
• Energy just changes form

6
Mechanical Energy

• The total amount of kinetic and potential energy
  in a system

7
Is Energy Always Conserved?

• Effects of Friction
• Work Done equals the change in energy.
• WFd