Kinetic & Potential
By: Mrs. Crisp
S.P.I
0507.10.1
Differentiate between potential
and kinetic energy.
Academic Vocabulary
Energy
The ability to perform work or change an object
Law of Conservation of Energy
Energy may change form but it cannot be created or destroyed
Potential Energy
Energy stored in the position or structure of an object
Kinetic Energy
The energy of a moving object
I DON’T HAVE ANY ENERGY!
Have you ever said…
“I am so tired! I
don’t have
any energy!”
Just what do you
mean?
What is energy?
Energy
The ability to perform work or change an object
When you are low on energy, you probably cannot do
much work. But…
WHAT IS WORK?
Work is the measurement of the energy used to perform
a task.
What is energy?
We have energy but did you know objects also have
energy?
An example of an object with energy would be a slinky.
When you stretch a slinky and let it go, it pulls itself
back to its original shape.
Potential Energy
Energy does not have to involve motion.
When the slinky is stretched, it has energy but it is not
moving. It has the potential to do work.
Potential Energy
The energy that is stored in the position or
structure of an object
Potential Energy
There are several different kinds of potential energy.
Nuclear Potential
Gravitational Potential
Chemical Potential
Elastic Potential
Potential Energy
Any time an object is raised above the ground, the
potential energy it gains is gravitational potential energy.
The greater the object’s height and weight, the more
gravitational potential energy it gains.
Kinetic Energy
Once an object is in motion, it has energy of motion
Kinetic Energy
The energy of a moving object
A roller coaster has kinetic energy when it is moving up
or down on a ramp.
A moving object can do work on any object it touches.
Kinetic Energy
The amount of kinetic energy an object has depends on
its velocity.
The faster the object is moving, the more kinetic energy
it has.
The amount of kinetic energy an object has also depends
on its mass.
An object with a greater mass will have more kinetic
energy than an object with a smaller mass.
Kinetic Energy
There are several different kinds of kinetic energy.
Electricity
Sound
Heat
Light
Energy
All forms of energy have one thing in
common…
THEY CAN ALL PERFORM WORK!
Energy
Some forms of energy change the
structure of objects rather than
move them, but this is still work.
For example, heat can melt or boil
substances.
Changing Potential Energy
into Kinetic Energy
Potential energy can change into kinetic energy very
easily.
Potential
Kinetic
How can energy change?
Energy does not always keep its form.
Energy is transferred when it passes from one object to
another.
The kinetic energy if transferred from one ball to
another when the collide.
How can energy change?
The first ball slows down or stops as it collides
with the second ball. The kinetic energy is
transferred to the second ball and the second
ball begins to move.
How can energy change?
Energy can also be transformed when it changes from
one form to another.
For example, when you flip a light switch to turn a light
on, you are transforming electrical energy to light energy.
How can energy change?
Energy can NOT be created or destroyed. It can only
change forms.
This is called the law of conservation of energy.
Law of Conservation of Energy
Energy can not be created or destroyed; it can only
change forms.
A roller coaster, for example, can not gain kinetic energy
without losing potential energy.
THIS WILL BE ON YOUR TEST!!!
QUESTIONS?