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Forms Of Energy
By: Ivy Couch
Class Period: 4th
Date:10/14/15
Standards: S8P2. Students will be familiar
with the forms and transformations of
energy.
• a. Explain energy transformation in terms of
the Law of Conservation of Energy.
• b. Explain the relationship between
potential and kinetic energy.
• c. Compare and contrast the different forms
of energy (heat, light, electricity,
mechanical motion, sound) and their
characteristics.
Mechanical Energy
•
•
Mechanical energy is
related to the position
and motion of an object.
Examples:
1) Pitcher throwing a
baseball
2) Throwing a
football
3) Hammering a nail
when throwing a foot ball it has
mechanical energy because you
have to add both potential and
kinetic energy to find the distance
of how far the ball will go.
Throwing a baseball you
have to subtract both
kinetic and potential
energy and it can tell about
have far the ball will go.
When hammering a nail
is mechanical energy
because you have to be
precise. It can change
from mechanical to
thermal energy because
of the friction of the
hammer hitting the nail
which would also go to
sound energy from when
it hits the nail.
Thermal Energy
• The total of potential
and kinetic energy of the
particles in an object.
• Examples:
1) ice cream melting
2) Lava going down a
volcano
3) Boiling water
Boiling water
is thermal
because the
pot you are
boiling the
water in heats
up for the
water to boil.
An ice cream cone could both
thermal and chemical energy.
It could be thermal once it
begins to melt in your mouth
then change to chemical once
its in you feeding off energy
to your body. Also could be
kinetic energy when the ice
cream in running down the
cone while meting.
Lava going down a
volcano is thermal
because the hot lava
begins to loose its heat
and harden.
Electric Energy
• Energy of electric
charges. Can be either
potential or kinetic
depending on if they
are in motion or being
stored.
• Examples:
1)Lightning
2)Getting shocked
by doorknob
3)Power outlet
Lightning has electric charges that
make it form electric energy. This
could also be thermal energy if it
stuck something because it can cause
heat. This is also be electromagnetic
energy because it causes light.
When getting
shocked by a door
knob it is electric
charges releasing to
your hand.
A power outlet is an
example of electric energy
because it gives off
electricity to things that
are plugged into it.
Chemical Energy
• Bonds between the atoms
and molecules hold a
chemical compound.
• Examples:
1) food
2) batteries
3) coal
Food is an example of chemical
energy because it gives energy to
your body to do more things. This
could also be thermal depending
on the food, or when you are
chewing from the friction. This
could be potential energy because
before you eat it is filled with
energy.
A battery is a chemical energy because it
is chemical bonds getting ready to be
released to force something else to gain
power.
Coal is a chemical energy
because it is chemical bonds
getting ready to be heated to
give off energy (like a train).
Nuclear Energy
• Stored in the nucleus of
an atom. His energy is
released during a nuclear
reaction.
• Examples:
1) Power plants
2) Sun
3) Grenade
A grenade is nuclear
because it can give
off an explosion or a
very reactive affect.
Power plants are
nuclear because of the
different reactive things
they give off into the
air.
The sun is an example of nuclear
energy because the different charges
it gives off to us on an everyday
base. It could also be light and
thermal energy. It could be light
because it lights up the world daily.
It is thermal energy because it gives
off different amounts of heat
depending on where you are. But
also it could be electromagnetic
energy because of the light coming
from it.
Electromagnetic Energy
• Travels in waves, they
have some electrical
properties and some
magnetic properties.
• Examples:
1) X-rays
2) Radio
X-rays travel in light waves
to figure the different results
of what it shows which is
electromagnetic.
Radio travel through waves
such as sound waves.
3) Microwaves
A microwaves travel in several different
energies. It could go from electromagnetic
from the light, then could cause thermal energy
from the heat, but also sound energy because it
comes through with a sound.
Potential Energy
• The energy that is stored
in an object.
• Examples
1) bike stopped on a
hill
2) holding a ball
before releasing it
3)pulling a bow string
back
Before pitching the ball
you have a full amount of
potential because you are
about to let go with all of
your power to the ball.
When the bike is at
the top of the hill it
has the highest point
of potential energy
because it is soon
going to be
transferred to
kinetic.
A bow is an example because
when you pull it back it is filled
with potential energy to be
released into kinetic. This could
also be thermal energy once it hits
what you are aiming for when it
rubs together to make heat. But
also could be mechanical because
you should have a precise motion.
Kinetic Energy
• Kinetic energy is the
energy being released
from an object
Examples
1) Throwing a ball
2) riding a bike
down a mountain
3) Using a battery
When a pitcher
throws a ball it is
giving transferring
from potential to
kinetic while in
mothing.
Riding a bike down a hill is an
example of kinetic because it is
giving off potential and changing
to kinetic. This is also thermal
energy depending on what the
ground is like you are riding on.
But also sound if you can hear
you hit different rocks or the
tires/metals making noises.
Using your phone means you are using your battery which
means you are giving off potential to kinetic from the
highest and lowest point to kinetic energy. You are using
up kinetic that will soon be potential when it dies.
Sound Energy
• Sound energy is the
different noises you hear.
• Examples:
1) vacuum
2) blow dryer
3) coke/ soft
drinks
Coke is an
example of sound
because when you
open it, it has a
fizz/ bubble sound.
A vacuum starts at electrical
energy from when you plug it in
then goes to sound and then goes
to thermal from he friction from
moving it around on the floor.
A blow dryer is an example
of sound because when you
use it, it has a sound.
Law of Conservation
of Energy
Energy may not be
lost/destroyed nor be
gained/made
Energy can never be
taken away. It can
only be “transferred”
from one type to
another.
For example if you
have potential
standing in one
place then you
began to walk it
will began to
change into kinetic
with motion.
Resources
1.Google images
2.Graphic organizers
3.All the notes I have taken