Power

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  • Created by: Jo Wells
  • Created on: 28-12-12 18:04
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  • Power
    • Power = "the rate of doing work"
    • Work done (energy transferred) = power X time taken
      • E = P X t
    • Measured in Watts (or J/s)
    • Calculating power of a person
      • Timed run upstairs
        • Here 'E' = potential energy gained (m X g X h) & Power = m X g X h/t
      • Timed acceleration
        • Here 'E' = kinetic energy gained (1/2 X m X v squared) & Power = 1/2 X m X v squared /t

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