Download Kinetic and Potential Energy

Kinetic and Potential Energy
I can identify types of energy, including potential
and kinetic.
Definition of Energy…
The ability to do work or cause change.
Energy is classified as either
potential energy
or
kinetic energy.
Potential Energy
• Potential energy
– Stored up energy
or energy at rest.
KINETIC ENERGY:
Energy in motion
Potential energy is stored energy or energy at rest.
It is the highest
point, so it will
fall the furthest,
so it has more
potential energy.
What point would have the greatest amount of
potential energy?
Potential energy is stored energy or energy at rest.
The lowest point would have the least amount
of stored energy or potential energy.
What point would have the least amount of
potential energy?
Kinetic energy is …..
energy in motion.
As potential energy decreases,
kinetic energy increases.
So, the greatest amount of
kinetic energy would be….
just before the ball hits the
ground.
potential
____________
energy?
kinetic energy?
________
When the bow string is pulled back all the way,
the type of energy demonstrated would be
potential
_______________
energy.
Once the string is let go the
arrow will fly toward the
bulls eye. The arrow
moving demonstrates
___________
energy.
kinetic
We can now look at other forms
of energy and classify them as
either potential energy or
kinetic energy
Types of Energy
Types of Energy
Mechanical -
Mechanical energy:
moving energy
Kinetic
Energy!
Types of Energy
Mechanical -
Electromagnetic -
Electromagnetic
Energy?
o Light energy
o Includes energy from
gamma rays, xrays,
ultraviolet rays,
visible light, infrared
rays, microwave and
radio bands
Types of Energy
Mechanical Electric -
Electromagnetic -
Electric Energy energy that comes through
electrical lines or lightning.
Types of Energy
Mechanical Electric -
Electromagnetic -
Thermal -
Thermal energy
is heat energy.
Types of Energy
Nuclear -
Mechanical Electric -
Electromagnetic -
Thermal -
Nuclear energy –
Nuclear power plants, atomic
bomb, stars (sun- solar energy)
Types of Energy
Mechanical -
Nuclear -
Chemical Electric -
Electromagnetic -
Thermal -
Chemical Energy
o Energy released from
chemical reactions.
Chemical energy is
stored on the end of a
match.
Examples of Chemical Energy
Fossil fuels
battery
food
Where do we get our energy from?
Where do we get our energy?
When we eat food, what type of reaction occurs
to give us the energy?
CHEMICAL
Plants take in the energy
from the sun.
They use this energy
in a CHEMICAL
process of
photosynthesis to make
food for the plant to
grow.
Potential energy is stored energy or energy at rest.
It is the highest
point, so it will
fall the furthest,
so it has more
potential energy.
What point would have the greatest amount of
potential energy?
Potential energy is stored energy or energy at rest.
The lowest point would have the least amount
of stored energy or potential energy.
What point would have the least amount of
potential energy?
Kinetic energy is …..
energy in motion.
As potential energy decreases,
kinetic energy increases.
So, the greatest amount of
kinetic energy would be….
just before the ball hits the
ground.
potential
____________
energy?
kinetic energy?
________
When the bow string is pulled back all the way,
the type of energy demonstrated would be
potential
_______________
energy.
Once the string is let go the
arrow will fly toward the
bulls eye. The arrow
moving demonstrates
___________
energy.
kinetic
Potential Energy
Kinetic Energy
NOTES
Types of Energy
Mechanical Moving energy
Nuclear Nuclear plants
bombs, stars
Chemical Fossil fuels,
food,
Electric Energy carried in
electrical lines
or lightning
Electromagnetic Thermal Light, x-ray,
Heat energy
gamma energy
Potential Energy
• Potential energy
– Stored up energy
or energy at rest.
KINETIC ENERGY:
Energy in motion
Potential energy is stored energy or energy at rest.
It is the highest
point, so it will
fall the furthest,
so it has more
potential energy.
What point would have the greatest amount of
potential energy?
Potential energy is stored energy or energy at rest.
The lowest point would have the least amount
of stored energy or potential energy.
What point would have the least amount of
potential energy?
Kinetic energy is …..
energy in motion.
As potential energy decreases,
kinetic energy increases.
So, the greatest about of
kinetic energy would be….
just before the ball hits the
ground.
When the bow string is pulled back all the way,
the type of energy demonstrated would be
potential
_______________
energy.
Once the string is let go the
arrow will fly toward the
bulls eye. The arrow
moving demonstrates
___________
energy.
kinetic