Download Kinetic and Potential Energy

Law of Conservation of Energy: a principle
that states that energy is neither created
nor destroyed, it simply changes form
 Kinetic Energy: the energy of motion
 Potential Energy: The energy stored in an
object or substance.
 Gravitational Potential Energy: the potential
energy that exists between two objects that
exert a gravitational pull on each other


Energy can be categorized into two
general types of energy.
› Potential energy is energy that is not being
used, so is often referred to as stored
energy.
› Kinetic energy is the energy of matter in
motion
This car
uses a
lot of
energy
Batteries store energy!
Even this
sleeping
puppy is
using
stored
energy.
We get
our
energy
from
FOOD!
A stretched rubber band..
Water at the top of a waterfall..
Yo–Yo held in your hand..
A drawn Bow and Arrow…

Energy in Action
• Remember
ENERGY is never
CREATED or
DESTROYED…it can
only be STORED or
TRANSFERRED!!

If I want to drop an apple from the top of
one of these three things, where will be the
most potential energy?
A
B
C
A
 The
higher the
object, the
more potential
energy!

When stored energy begins to move, the
object now transfers from potential
energy into kinetic energy.
The semi- truck has more mass;
therefore, more kinetic energy!
A. At the top of the fall.
B. In the middle of the fall.
C. At the bottom of the fall.

C. At the bottom of the fall.
It has the most kinetic energy when its
movement and speed are greatest, which
is at the bottom of the fall right before it hits
the ground.


When an object has the LEAST potential
energy is when it has the MOST kinetic
energy.
BrainPop
 Animated
Roller Coaster

The Law of Conservation of Energy states
that “energy can neither be created nor
destroyed. It is simply converted from
one form to another.”
Newton’s Cradle. The kinetic energy of
the ball on the left is transferred to the
next ball, which transfers the energy to
the next ball, so on down the line.
When the last ball is hit, the kinetic
energy causes it to kick out from the
others. It swings back with kinetic
energy, which it thus returns to the next
ball and the progression continues.
Newton's Cradle