Types of energy can be categorised into two broad categories – kinetic energy (the energy of moving objects) and potential energy (energy that is stored). These are the two basic forms of energy

1. Bell Ringer
Grab a half sheet of paper from the front desk.
Take 5 - 10 minutes to answer the following
question and then turn in to be graded.
A solar-powered car converts ________ energy
into _________ energy.

2. Forms of Energy
Energy is all around you.
• You hear energy as sound, you see
energy as light, you can feel energy in
wind.
• Living organisms need energy for growth
and movement.
• You use energy when you
hit a tennis ball, compress
a spring, or lift a grocery bag.
Energy is the ability to do Work

3. Energy in the
Universe
• The energy released
by a supernova is
capable of destroying
a nearby solar system
in just a few hours. A
supernova is one of
the greatest
concentrations of
energy in the universe.

4. Batteries store energy!
This car
uses a
lot of
energy
We get
our
energy
from
FOOD!
Even this
sleeping
puppy is
using
stored
energy.
Examples

5. Forms of Energy:
Potential Energy:
• Chemical
• Mechanical
(stored)
• Nuclear
• Gravitational
Potential
• Geothermal
Kinetic Energy:
• Electrical
• Electromagnetic
• Thermal
• Mechanical
(motion)
• Sound
• Wind
• Solar
• Light

6. Chemical Energy
•Energy stored in the bonds of molecules.
•When chemicals are broken apart and new
chemicals are formed, some of this energy
is released.
Examples:
•You eating
•Photosynthesis
•Batteries
•Burning wood

7. Mechanical Energy
Mechanical energy refers to
the energy of machines and
the ability to do work.
It is the sum of the potential
and kinetic energy of a
system.

8. Nuclear Energy
•Energy stored in the nucleus
of an atom.
•The sun’s energy comes
from nuclear fusion, a type
of reaction in which
lightweight atomic nuclei
combine to form a heavier
nucleus.
•Nuclear power plants use
nuclear fission to release
nuclear energy. In fission, a
single heavy nucleus is split
into two or more lighter
nuclei.

9. Electrical Energy
Electricity is
the result of
the flow of
electrons
through wires
or other
conducting
materials.
Static
Electricity
or
Current

10. Electromagnetic Energy
• This is energy released by a star and can
travel through space.
• Includes all the waves found in the
electromagnetic spectrum

11. Thermal Energy
Energy that is
created in the
movement of atoms
that produces heat.
Example: boiling
water, burning wood,
rubbing hands
together
Energy Transferred:
Convection,
Conduction, and
Radiation

12. Sound
• Energy in vibrating objects, requires a
medium to travel (so cannot work without
matter)

13. Energy Transformations
Now that we have discussed the various types of
energy. Let’s talk about how energy is transformed.
To utilize the various types of energy we encounter,
it must transform. For example; I am cold and want
to start a fire in the fireplace. Can I just snap my
fingers and a log ignite? No. It requires some sort of
starter. So, I turn to a match. Sitting in the box, the
match is potential energy. It has chemicals stored on
the tip that when struck will ignite. Instantly the
chemical energy has been transformed into thermal
energy. I can now use that to excite the molecules in
the wood to start a roaring fire (with a little luck).

14. Energy Transformations
Remember: The Law of Conservation of
Energy states that energy is not created or
destroyed it is transformed. Keeping that
in mind, identify the transformations of
energy in the following slides on a sheet of
notebook paper and turn it in.

15. Children on a Swing Set

16. Hair Dryer

17. Pizza and You

18. Gas and Car

19. Solar Panel

20. Geothermal

21. Sunlight and Plants
Identify the type of energy and transformation.