transfer of energy. forms of energy potential chemicalmechanical kinetic thermal radiant...
TRANSCRIPT
Transfer of
Energy
Forms of Energy
Potential
Chemical Mechanical
Kinetic
ThermalRadiant
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.
Now we will discuss:Energy Transformations and how it allows us to do work
Transform – It might change shape
or form, but it still contains all the same
things!!
How we transform ENERGY!
Cells
Heat Mechanical
StomachMacromolecules
Chemical EnergyFood
Energy Transformation
Heat
Mechanical
Chemical
Transfer of Energy
For example, heat and the small molecules of water are the by-products of metabolism. Chemical Energy Mechanical & Heat Energy
Heat co2
H2O
+
What type of Energy is being transformed?
THE MOST
IMPORTANT TYPE
OF ENERGY
TRANSFORMATION
WHAT IS THE
ULTIMATE AND
MOST
IMPORTANT
SOURCE OF
ENERGY???
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