Equations GK

    Cards (8)

    • Kinetic energy = 0.5 × mass × (speed)²
      Ek=½mv²
    • Elastic potential energy = 0.5 × spring constant × (extension)²
      Ee=½ke²
    • Gravitational potential energy = mass × gravitational field strength × height
      Ep=mgh
    • Change in thermal energy = mass × specific heat capacity × temperature change
      ◇E=mc◇0
    • power =energy transferred ÷ time
      P = E ÷ t
    • power = work done ÷ time
      P=W ÷ t
    • Efficiency = useful output energy transfer ÷ total input energy transfer
    • Efficiency = useful power output ÷ total power input
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