P2 - Work, Energy and Momentum

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  • Created by: EllenMIW
  • Created on: 16-12-15 18:20
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  • Work, Energy and Momentum - P2
    • Work
      • When you transfer energy you do work
    • Kinetic energy
      • Doubling the speed quadruples the kinetic energy
        • K is proportional to speed^2
      • KERSs
        • Kinetic Energy Recovery Systems
        • Brakes convert kinetic energy into wasted thermal energy
          • Kinetic energy stored to drive a generator
        • Makes more efficient
    • Conservation of momentum
    • Explosions
      • Momentum in explosions
        • Before, total momentum=0
        • After
          • Total momentum almost 0
            • Objects move in opposite directions
          • Objects move in opposite directions
          • Recoil velocity and momentum are treated as negative


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