Transcript Energy Transformations

Energy
Transformations
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Energy Transformations
•Chemical
•Mechanical
•Electrical
•Thermal (heat)
1. Chemical Energy
•Specific
arrangement of
chemicals
Examples of chemical energy
• If you strike
the wood end
of a match,
nothing
happens. If
you strike the
tip with the
chemicals, the
match will
light.
Examples of chemical energy
• Hand
warmers
• Glow sticks
• Injury packs
• Batteries
• Food
2. Mechanical Energy
•Energy of an object
that is moving
Examples of mechanical energy
• Gears
• Windmills
• Riding a
bike
• Juggling
• Turbines
3. Electrical Energy
•Energy of moving
electrons
Examples of electrical energy
• Curling iron
• Toaster
• DVD player
• Refrigerator
4.Thermal (heat) Energy
•Movement of
molecules to create
heat
Thermal (heat) Energy
•Conduction
•Convection
•Radiation
Conduction
•Transfer of energy
through direct
contact
Examples of conduction
• Burning your
hand on the hot
stove
• Pancake on the
griddle
• Burning your
feet on the
pavement on a
hot summer day
Convection
•Movement that
transfers heat in a
liquid or gas
Examples of convection
• Heating
your house
• Cooking
soup
• Lava lamp
Radiation
•Transfer of energy
by light
Examples of radiation
• Sunbathing
• Heat from a
bonfire
• Tanning
booth
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