a) KE/GPE

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Last updated 5:14 PM on 9/22/26
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5 Terms

1
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  • define kinetic energy


  • energy due to an object’s motion


2
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  • state the formula for kinetic energy


  • Ek = ½mv2

    • kinetic energy (J) = ½ × mass (kg) × velocity2 (m2s-2)


3
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  • define gravitational potential energy


  • energy due to an object’s position in a uniform gravitational field


4
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  • state the formula for gravitational potential energy


  • Ep = mgΔh

    • gravitational potential energy (J) = mass (kg) × acceleration of free fall (ms-2) × change in height (m)


5
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  • state the two formula’s applicable when kinetic and gravitational potential energy are exchanged


  • ½mv2 = mgΔh

    • loss/gain in Ek = loss/gain in Ep

  • v = √2gΔh

    • velocity (ms-1) = √ 2 × acceleration of free fall (ms-2) × change in height (m)