The Eight Forms of Energy
 Energy can neither be
created nor destroyed
 Most the energy on
our planet comes from
the sun
 Without Energy, no
work could be done!
An overview of the Energy
Forms
THE FORMS OF ENERGY
Energy cannot be created
nor destroyed, only converted
from one form to another
Light
Sound
Magnetic
Electical
Thermal
Elastic
Chemical
Nuclear
Mechanical
Gravitational Energy
•Gravitational energy is the
energy that an object has
while it is suspended above
the Earth.
Light Energy
 A form of energy you can
see
 The sun and the stars
 There are many sources
that can supply light as
energy:
 Stars, Electricity, Fires,
etc
Thermal Energy
• Heat energy is the result of particles in motion
• Explained by the KMT
•Excessive heat causes pain sensors in your skin
to fire madly, indicating pain from heat
•Heat comes from many sources:
1.
Electrical Energy
2.
Chemical Energy
(for example, fires)
3.
Mechanical energy
(rubbing your hands)
Magnetic Energy
Elastic Energy
• the build up of
energy (potential) is
stored in an object
until it is finally
released
•Earthquakes
•Rubber Bands
Sound Energy
• sound energy is
caused by vibrating
particles, which pass a
sound wave through air
or some other medium
like water
•Some of the best
vibrations pass through
water, which is why
whales can
communicate long
distances
Chemical Energy
1. The food we eat contains
chemical energy
2. That energy is released
by digestion
3. Chemical energy is also
stored in chemical
compounds like TNT,
you know as dynamite.
Mechanical Energy
• The energy of motion
• Your bicycle is a perfect example
•Anything that moves has mechanical energy
that we can measure
Nuclear Energy
•
Force two H atoms together
and massive energy is
released
Split He into 2 Hydrogen
atoms and you release
energy in huge quantities!
Nuclear power
comes from
releasing the
power stored in
the ATOM!!!!
Electrical Energy
Electricity comes from many
sources.
It runs your lamps,
stereo, toaster, DVD, and
the washing machine!
What does all this mean to you?
Energy has 10 forms
and you must know
them !!
2. Energy can be
transformed between the
types.
1.
Eg Electical to heat!
A Quick Quiz!
1.
2.
3.
4.
5.
Name 4 forms of energy.
What is magnetic energy? Give eg.
What is chemical energy? Give eg.
How does an elastic store elastic energy?
What is the major source of energy for the
planet Earth? What types of energy does this
source give us?
That’s all Folks