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**Potential and Kinetic Energy**

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**How is all energy divided?**

Potential Energy Kinetic Energy Gravitation Potential Energy Elastic Chemical

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**What is Potential Energy?**

Energy that is stored and waiting to be used later

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**What is Gravitational Potential Energy?**

Potential energy due to an object’s position P.E. = mass x height x gravity Don’t look down, Rover! Good boy!

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**What is Elastic Potential Energy?**

Potential energy due compression or expansion of an elastic object. Notice the ball compressing and expanding

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**What is Chemical Potential Energy?**

Potential energy stored within the chemical bonds of an object

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**What is Kinetic Energy? Energy an object has due to its motion**

K.E. = 1/2mv2

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**Kinetic Energy Depends on 2 factors**

Mass and Velocity If Dino and the car have the same velocity, which has the greater KE? If the trucks have the same mass, which one has 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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**TME = KE + PE 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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