Download Potential and Kinetic Energy

Potential
and Kinetic
Energy
How is all energy divided?
All Energy
Potential
Energy
Gravitation
Potential
Energy
Elastic
Potential
Energy
Kinetic
Energy
Chemical
Potential
Energy
What is Potential Energy?
o Energy that is stored
and waiting to be
used later
What is Gravitational Potential
Energy?
o Potential energy
due to an object’s
position
Don’t look down,
Rover!
Good boy!
o P.E. = mass x
height x gravity
What is Elastic Potential Energy?
o Potential energy due compression or
expansion of an elastic object.
Notice the ball compressing
and expanding
What is Chemical Potential Energy?
o Potential energy
stored within the
chemical bonds of
an object
What is Kinetic Energy?
o Energy an object has due
to its motion
o K.E. = .5(mass x speed2)
THE TRADE OFF Between Potential
& Kinetic Energy
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.