Download TYPES OF ENERGY

TYPES OF
ENERGY
Mechanical,
Electromagnetic,
Electrical,
Chemical and Thermal
What is energy
• The ability to do work or cause
change
•
The energy can take a wide variety of forms - heat (thermal),
light (radiant), mechanical, electrical, chemical, and nuclear
energy. There are two types of energy - stored (potential)
energy and working (kinetic) energy. For example, the food
you eat contains chemical energy, and your body stores this
energy until you release it when you work or play.
How is energy stored?
• All forms of energy are stored in different ways, in the
energy sources that we use every day. These sources
are divided into two groups -- renewable (an energy
source that we can use over and over again) and
nonrenewable/conventional (an energy source that we
are using up and cannot recreate in a short period of
time). Renewable energy sources include solar energy
(which comes from the sun and can be turned into
electricity and heat), wind energy, geothermal energy
(from inside the earth), biomass from plants, and
hydropower from water are also renewable energy
sources.
How do we use energy?
• We use all these energy sources to generate the
electricity we need for our homes, businesses,
schools, and factories. Electricity "energizes" our
computers,
lights,
refrigerators,
washing
machines, and air conditioners, to name only a
few uses.
• We use energy to run our cars. The gasoline we
burn in our cars is made from oil. We use energy
to cook on an outdoor grill or soar in a beautiful
hot-air balloon.
The propane for these
recreational activities is made from oil and natural
gas.
• Energy is in everything. We use energy to do
everything we do, from making a jump shot to
baking our favorite cookies to sending astronauts
into space -- energy is there, making sure we
have the power to do it all.
What is Mechanical Energy?
o Energy due to a
object’s motion (kinetic)
or position (potential).
The bowling ball has
mechanical energy.
When the ball strikes
the pins, mechanical
energy is transferred to
the pins!
Examples of Mechanical Energy
What is Electromagnetic
Energy?
o Light energy
o Includes energy from
gamma rays, xrays,
ultraviolet rays, visible
light, infrared rays,
microwave and radio
bands
What is Electrical Energy?
o Energy caused by
the movement of
electrons
o Easily transported
through power lines
and converted into
other forms of energy
What is Chemical Energy?
o Energy that is
available for release
from chemical
reactions.
The chemical bonds in
a matchstick store
energy that is
transformed into
thermal energy when
the match is struck.
Examples of Chemical Energy
What is Thermal Energy?
o Heat
energy
o The heat energy of an
object determines how
active its atoms are.
A hot object is one whose atoms
and molecules are excited and
show rapid movement.
A cooler object's molecules and
atoms will show less movement.
QUIZ TIME!
What type of energy
cooks food in a
microwave oven?
ELECTROMAGNETIC
ENERGY
What type of energy is
the spinning plate inside
of a microwave oven?
MECHANICAL ENERGY
QUIZ TIME!
Electrical energy is
transported to your house
through power lines.
When you plug an electric fan
to a power outlet, electrical
energy is transform into what
type of energy?
MECHANICAL ENERGY
QUIZ TIME!
What energy transformation
occurs when an electric lamp is
turned on?
ELECTRICAL ENERGY

ELECTROMAGNETIC ENERGY
What types of energy are shown below?
Mechanical and Thermal Energy
(Don’t forget friction)
What type of energy is shown below?
Chemical Energy
What types of energy are shown below?
Electrical, Mechanical and
Electromagnetic Energy
What type of energy is shown below?
Chemical Energy (yummy)
What type of energy is shown below?
Thermal Energy
• Draw a flow map showing the flow of
energy transformations in a car from
starting vehicle to driving. You should
have 5 different types of energy.
Energy Transfer
Sound
(mechanical)
Thermal
Electrical
Mechanical
Chemical
Light
(Electromagnetic)