ENERGY CONVERSIONS:Formula for Energy Transformations - GPE & KE

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NGSS.HS-PS2-4

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NGSS.HS-PS2-1

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NGSS.HS-PS3-2

The common factor for calculating BOTH KE and GPE is:

• the effect of gravity (g) on the object

• the mass (m) of the object

• The speed (v) of the object

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NGSS.HS-PS2-4

NGSS.HS-PS3-2

The amount of work done can be calculated using the formula.

W = Fd

The size of the force needed to move an object is calculated using the formula:

Work and Gravitational Potential Energy are related in that:

• work is always done when an object is lifted or falls

• the amount of work done = the change in GPE

• work is only done if an object is raised from the ground

• work is not done when an object falls to the ground

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NGSS.HS-PS2-4

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NGSS.HS-PS3-1