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Forms of Energy
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What is energy??? Energy –The ability to do work. There are
8 forms of energy.
Chemical
Nuclear
Elastic
Gravitational
Mechanical
Heat
Electrical
Electromagnetic
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Forms of EnergyMechanical Energy
Energy of moving objects
Examples:
Running Tornadoes Sound
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Forms of EnergyHeat Energy
The motion of atoms in a substance
Examples:
Lava Stove Boiling Water
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Forms of EnergyElectrical Energy
The movement of electrons
Examples:
Electricity Lightning Northern Lights
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Forms of EnergyElectromagnetic Energy
All types of light or electromagnetic waves
Examples:
Light X-Rays Radio waves
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Forms of EnergyChemical Energy
Energy that bonds atoms together in all objects
–released when bonds are broken in chemical
reactions
Examples:
Fuels Firewood Food
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Forms of EnergyNuclear Energy
Energy that holds the nucleus of all atoms together–released when nucleus is split or fused with another–most concentrated form of energy in the universeExamples:
The sunNuclear power
Nuclear bombs
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Forms of EnergyElastic Energy
Energy in an object due to a change in shape
Examples:
Sling shot Spring Trampoline
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Forms of EnergyGravitational Energy
Energy in an object above the ground
Examples:
Skydiver Waterfall Rock Climber
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Before we begin . . . A couple of questions
Is energy always active???
Can energy be stored???
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Two States of Energy Kinetic Energy – energy that is active, currently
doing something. Anything in motion.
-waves, electrons, atoms, objects
Potential –stored energy (inactive)
–anything that has the possibility of releasing energy
has potential energy
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All Energy Is
PotentialChemical
Nuclear
Elastic
Gravitational
KineticMechanical
Heat
Electrical
Electromagnetic
OR
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A few things to think about…• Where does energy come from?
• Where does energy go when you use it?
• Can you make energy?
• Can you destroy energy?
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The Law of Conservation of Energy
Energy can’t be created or destroyed, it can only be
changed.
What does this mean?
We don’t make energy, we just change it to a form we
can use!
Energy is constantly changing its form!