ENERGY TRANSFORMATIONS
http://www.youtube.com/watch?v=5vJCOdFqiYg
Bill Nye – Forms of Energy
KEY UNDERSTANDINGS
• Energy cannot be created or destroyed.
(Turn & Talk)
• Energy can be transformed from one type of
energy to another.
What is the source for most energy on
Earth?
THE SUN!
What are the most common forms of
energy?
•
•
•
•
•
•
Chemical
Electrical
Sound
Nuclear
Thermal
Light (radiant)
Where does energy go?
• Remember the law of conservation of energy!
• Energy is TRANSFORMED from one form of
energy to another!
• With your group can you guess some examples
of energy transformations.
•What is the difference
between potential and
kinetic energy?
• Potential Energy is stored energy!! (not yet
moving)
• Kinetic energy is energy in motion!
How Heat is Transferred
Heat is transferred
in 3 ways:
1. Conduction
2. Convection
3. Radiation
Conduction vs. Convection
• Conduction
▫ Heat is transferred
through direct
contact (touch)
Examples:
▫ Touching a hot
stove
• Convection
▫ Heat is transferred
through
circulation
within a liquid or
gas
Examples:
▫ Hot chocolate
melting
marshmallows
Create a foldable!
Create a foldable for the 3 types of
thermal energy
1. Conduction
2. Convection
3. Radiation
http://www.wisconline.com/Objects/heattransfer/default.aspx
The End
• http://www.youtube.com/watch?v=qybUFnY7Y
8w - Song
• http://www.youtube.com/watch?v=D_UsDrreJ
eo Goonies
• http://www.youtube.com/watch?v=YWk9N92wvg commercial
• BrainPop – Forms of Energy
• Discovery Video – forms & transfer