Warm Up 11/16/15 List all the forces acting upon this action, a women pushing upon a box that does not move. What type of friction is occurring and why? What is the action and reaction forces that are occurring? Is there any other forces occurring in this situation? If yes, what are they?

Potential and Kinetic Energy

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

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

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!

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

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

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