1. Energy Transformation
Created by Kesler Science – More 5E lessons at KeslerScience.com
Presented by Kesler Science

2. Essential Questions: How can you demonstrate energy transformations ?
Ex: A flashlight battery changes chemical energy to electrical energy to light energy.

3. Energy Transformations
Energy Transformation (Conversion)
The process of changing energy from one form to another
The flow from one type of energy to another
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4. Energy Transformations
ENERGY IN
= ENERGY OUT
Conservation of Energy
Energy can neither be destroyed nor created.
Energy doesn’t disappear.
Energy just transforms from one form into another.
Ex: Electric energy converts to heat energy on a stove.
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5. Energy Transformations
Types of Energy
Potential Energy
Energy that is stored
Forms of Potential Energy
Mechanical
Chemical
Nuclear
Electrical
Kinetic Energy
Energy that is in motion
Forms of Kinetic Energy
Mechanical
Radiant
Electrical
Thermal
Sound
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6. Energy TransformationsK
Kinetic
Potential
Electrical
Radiant
Mechanical (wind)
Thermal
Sound
Mechanical
(elastic)
Nuclear
(gravity)
Chemical
ENERGY
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7. Energy Transformations
Mechanical Energy - PE
The energy a body possesses because of its position
Energy stored by gravity or elastic potential
Ex: Book on a table
Compressed spring
Rubber band pulled back
Mechanical Energy - KE
The energy a body possesses because of its motion caused by gravity or elasticity
Ex: Flowing water
Winds
Arrow shot from a bow
Bouncing on a trampoline
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8. Energy Transformations
Can you follow the energy flow?
Mechanical energy KE
(wind)
(turning blades)
(pump)
Before showing the answers: Have students get with a partner to list all the energy flows they can figure out form the diagram.
Class discussion may lead to other transformations.
Also, have students draw or name an object that they think demonstrates mechanical energy. Then ask them to work with another student to list any transformations they think might happen.
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9. Thermal Energy - KE Energy Transformations
Also referred to as heat energy
The total energy of atoms and molecules that are constantly in motion.
Ex: Burner of a stovetop turned on
Hot cup of cocoa
Fire
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10. Energy Transformations
Can you follow the energy flow?
Chemical energy PE
(wax as fuel)
Thermal KE
(burning wick)
Radiant energy KE
(light)
Before showing the answers: Have students get with a partner to list all the energy flows they can figure out form the diagram.
Class discussion may lead to other transformations.
Also, have students draw or name an object that they think demonstrates mechanical energy. Then ask them to work with another student to list any transformations they think might happen.
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11. Energy Transformations
Radiant Energy – KE
Also referred to as solar or light energy
Energy caused by the movement of electromagnetic waves
Ex: Light emitted by lightbulbs
Sun
Microwaves
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12. Energy Transformations
Can you follow the energy flow?
Radiant energy KE
(sun)
Chemical PE
(photosynthesis)
(food)
Before showing the answers: Have students get with a partner to list all the energy flows they can figure out form the diagram.
Class discussion may lead to other transformations.
Also, have students draw or name an object that they think demonstrates mechanical energy. Then ask them to work with another student to list any transformations they think might happen.
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13. Energy Transformations
Sound Energy - KE
Energy in the form wave motion
Vibrations spread in all directions as one vibrating object touches another causing it to vibrate
Ex: Drum
Tuning fork
Talking
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14. Energy Transformations
Can you follow the energy flow?
Solar energy PE (sun)
Electrical energy PE (solar panel)
Electrical energy KE (wires)
Sound energy KE (music)
Before showing the answers: Have students get with a partner to list all the energy flows they can figure out form the diagram.
Class discussion may lead to other transformations.
Also, have students draw or name an object that they think demonstrates mechanical energy. Then ask them to work with another student to list any transformations they think might happen.
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15. Energy Transformations
Electrical Energy - KE
Moving electrons from one point to another in a conductor
Ex: Electric current in wires
Lightning
Electrical Energy - PE
Stored electrons not moving
Ex: Light bulb turned off
Stove turned off
Power outages
Electrons in clouds
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16. Energy Transformations
Can you follow the energy flow?
Electric energy KE (lightning)
Thermal KE (fire)
Before showing the answers: Have students get with a partner to list all the energy flows they can figure out form the diagram.
Class discussion may lead to other transformations.
Also, have students draw or name an object that they think demonstrates mechanical energy. Then ask them to work with another student to list any transformations they think might happen.
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17. Energy Transformations
Chemical Energy - PE
Energy stored in chemical substances.
Ex: Fuel
Explosives
Food
Batteries
Wood
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18. Energy Transformations
Can you follow the energy flow?
Chemical PE (battery)
Electrical energy KE (electricity)
Radiant energy KE (light)
Before showing the answers: Have students get with a partner to list all the energy flows they can figure out form the diagram.
Class discussion may lead to other transformations.
Also, have students draw or name an object that they think demonstrates mechanical energy. Then ask them to work with another student to list any transformations they think might happen.
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19. Energy Transformations
Nuclear Energy - PE
Also known as atomic energy
The energy stored in the nucleus of an atom
Can be released by fusion (combining atoms nuclei) or fission (splitting atoms nuclei)
Ex: Nuclear power plants
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20. Energy Transformations
Can you follow the energy flow?
Nuclear energy PE (fusion)
Mechanical energy KE (turbine)
Electrical energy KE (generator/wires)
Students may list many other transformations if they go into the town. Light, sound, etc.
Before showing the answers: Have students get with a partner to list all the energy flows they can figure out form the diagram.
Class discussion may lead to other transformations.
Also, have students draw or name an object that they think demonstrates mechanical energy. Then ask them to work with another student to list any transformations they think might happen.
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21. Energy Transformation
Energy Transformation INB Template
Cut out the Template
You can easily cut out the “reveal windows” by folding the paper in half and cutting.
Glue into INB using only a small dot of glue between each “reveal window”.
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22. Energy Transformation
Energy Transformation INB Template
Cut out the Template along all solid lines.
Place the Object/Energy strips in the pocket you just made.
Cut out title and glue into INB or write your own title.
These can also be used as review for assessments by adding new objects to the list.
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23. Energy Transformation
Energy Transformation INB Template
Cut out the Template
Fold along dotted lines to create a pocket.
Glue into INB
Use the pocket to store the object/energy type strips.
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24. Checking for Understanding
Can you…
Demonstrate energy transformations?
How can you demonstrate energy transformations ?
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