ENERGY Chapter 8

Definitions - 1

Definitions - 2

Definitions – 3

Work and Energy

Conservation of Energy ■We’d like to find out how energy transforms from one form to another (e.g., from KE to PE). ■One of the most important findings in physics is the law of conservation of energy: –Energy cannot be created or destroyed. It can be transformed from one form to another, but the total amount of energy does not change.

Applications ■Science of NHL HockeyScience of NHL Hockey ■Circus PhysicsCircus Physics ■Roller Coaster EnergyRoller Coaster Energy ■Energy Transfer in a TrebuchetEnergy Transfer in a Trebuchet

Activities ■Read section Situations in Which Mechanical Energy is Conserved, especially the roller coaster section.Situations in Which Mechanical Energy is Conserved ■Work and Energy InteractivesWork and Energy Interactives –Stopping Distance –Roller Coaster Model –Chart That Motion ■Read Scientific American article