Potential and Kinetic Energy

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Bellwork: Bellwork: List 6 different examples of energy. example: food; fire…

description

Based on Work and Energy Transformations; Kinetic, Potential Energy and Law of Conservation of Energy Adapted from site found on Internet

Transcript of Potential and Kinetic Energy

Page 1: Potential and Kinetic Energy

Bellwork:Bellwork:List 6 different examples of energy.

example: food; fire…

Page 2: Potential and Kinetic Energy

Potential and Kinetic EnergyPotential and Kinetic Energy

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How is all energy divided?How is all energy divided?

PotentialEnergy

KineticEnergy

All Energy

GravitationPotentialEnergy

ElasticPotentialEnergy

ChemicalPotentialEnergy

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What is *Potential Energy?What is *Potential Energy?

o *Energy that is *Energy that is stored and waiting stored and waiting to be used laterto be used later

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What is *Gravitational Potential What is *Gravitational Potential Energy?Energy?

o *Potential energy *Potential energy due to an object’s due to an object’s positionposition

o P.E. = mass xP.E. = mass x height x height x

gravitygravity

Don’t look down, Rover!

Good boy!

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What is *Elastic Potential What is *Elastic Potential Energy?Energy?

o *Potential energy due compression or *Potential energy due compression or expansion of an elastic object.expansion of an elastic object.

Notice the ball compressingand expanding

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What is *Chemical Potential What is *Chemical Potential Energy?Energy?

o *Potential energy *Potential energy stored within the stored within the chemical bonds chemical bonds of an objectof an object

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What is *Kinetic Energy?What is *Kinetic Energy?

o *Energy an object has *Energy an object has due to its motiondue to its motion

o K.E. = .5(mass x K.E. = .5(mass x speedspeed22))

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*Kinetic Energy*Kinetic Energy

*Kinetic Energy increases with *Kinetic Energy increases with speed. speed.

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Kinetic EnergyKinetic Energy

*Kinetic Energy increases with *Kinetic Energy increases with mass.mass.

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Law of Conservation of EnergyLaw of Conservation of Energy

*The Law of Conservation of *The Law of Conservation of Energy states:Energy states: *Energy is never created or *Energy is never created or

destroyeddestroyed *Energy is simply converted from *Energy is simply converted from

one form to anotherone form to another (also called the First Law of (also called the First Law of

ThermodynamicsThermodynamics))

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Law of Conservation of EnergyLaw of Conservation of Energy

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Your turn…Your turn…List on your notes: List on your notes:

Six examples of potential energySix examples of potential energy

Six examples of kinetic energySix examples of kinetic energy

Thank you for your attention today!!!Thank you for your attention today!!!