Conservation of Energy

• What are all the different ways that $100 could be represented?

• Cash• Checking account• Travelers checks• Change• Gold and silver coins• Credit card

• No matter what, that $100 will always be $100

Conservation of Energy

• Energy will always be energy, no matter what form it is in

• Energy can be transferred from one type of energy to another

• Potential Energy to Kinetic Energy• Kinetic Energy to Heat Energy• Heat Energy to Light Energy etc….. Any examples?

Potential Energy to Kinetic Energy

• Most common energy conversion

• Roller Coaster- lots of energy transfer going on!!!

Potential Energy to Kinetic Energy

Law of Conservation of Energy

• Energy Cannot be created or destroyed!!!

• Energy is always changing from one form to another, but energy is never created and it is never destroyed!!!