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Published byCamden Bough Modified over 2 years ago

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Potential and Kinetic Energy

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How is all energy divided? Potential Energy Kinetic Energy All Energy Gravitation Potential Energy Elastic Potential Energy Chemical Potential Energy

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What is Potential Energy? oEnergy that is stored and waiting to be used later

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What is Gravitational Potential Energy? oPotential energy due to an object’s position oP.E. = mass x height x gravity height x gravity Don’t look down, Rover! Good boy!

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What is Elastic Potential Energy? oPotential energy due compression or expansion of an elastic object. Notice the ball compressing and expanding

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What is Chemical Potential Energy? oPotential energy stored within the chemical bonds of an object

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What is Kinetic Energy? oEnergy an object has due to its motion oK.E. = 1/2mv 2

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Kinetic Energy Depends on 2 factors Mass and Velocity If the trucks have the same mass, which one has greater KE? If Dino and the car have the same velocity, which has the greater KE?

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Which factor has the greater impact on KE? Think about the formula!! Velocity has greater influence because it is SQUARED in the formula!!

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Energy is Conserved!

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The total amt of energy remains constant!! KE i + PE i = KE f + PE f

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Mechanical Energy The total amount of KE and PE is referred to as the total MECHANICAL ENERGY of an object. TME = KE + PE

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There are other forms of energy.

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