Transfer
of
Energy
Forms of Energy
Potential
Chemical
Kinetic
Mechanical
Radiant
Thermal
Electromagnetic
(8th)
Nuclear (8th)
Thermal/Heat Energy
• Motion of Atoms
• Measured by change in
Temperature
• We produce heat
energy.
Chemical Energy
• Chemical Energy is
required to bond atoms
together.
• And when bonds are
broken, energy is
released
Mechanical Energy
• When work is done to
an object, it acquires
energy.
• The energy it acquires is
known as mechanical
energy.
• Mechanical energy is
motion.
Radiant Energy
• Energy that comes from
the Sun.
Transform –
It might change
shape or form, but it
still contains all the
same things!!
Now we will discuss:
Energy Transformations and how it allows
us to do work 
How we transform ENERGY!
Chemical Energy
Food
Stomach
Macromolecules
Cells
Heat
Mechanical
Energy Transformation
Heat
Chemical
Mechanical
Transfer of Energy
Heat
co2
+
H2O
For example, heat and the small molecules of water
are the by-products of metabolism.
Chemical Energy  Mechanical & Heat Energy
What type of Energy is being
transformed?
Where does almost
ALL energy come
from?
The Sun
APPLY
1. I sit around all day… what would be best to drink?
2. I run marathons and am exhausted…what would be best to drink?
Transfer
of
Energy