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Potential and Kinetic Energy
 

Potential and Kinetic Energy

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    Potential and Kinetic Energy Potential and Kinetic Energy Presentation Transcript

    • Energy
      • Types of Energy
        • Potential energy
        • Kinetic energy
      • The ability to do work
      • Shown by:
        • Application of force
        • Movement of something by that force.
    • Force
      • Push or pull
      • More acceleration = _____ force
      • More mass = _____ force
      F = ma more more Force = mass X acceleration
    • Energy
      • Work = force x distance
      • ( W = F x d)
      • Measured in Joules:
        • N (unit of force) combined with with M (unit of distance).
    • Potential Energy
      • Stored energy:
        • Energy that can be burned ____
        • Chemical energy stored in _______
        • Energy stored in food as ______
        • Energy from height above the earth’s surface ________________
      fuel a battery sugars gravitational energy
    • Gravitational Energy
      • Due to the attractive gravitational force between all objects in the universe
      • Near Earth’s surface the force due to gravity is 9.8 m/s/s
    • Gravitational Energy
      • W = F x d
      • gPE = mgh
      • m = mass of the object
      • g = gravitational force
      • 9.8 m/s/s
      • h = height above the surface of the earth
    • Kinetic Energy
      • Energy due to motion depends on:
        • _____ of the object
        • ______ of the object
      mass speed
      • More connected to speed than mass:
      • KE = ½ mv 2
        • m = mass
        • v = speed
    • Conservation of Energy
      • Energy can’t be created or destroyed
      • Can change from one form to another
      • Examples:
        • Fuel burning makes ____
        • Battery makes ____
        • Use gravity to make
        • ______
      heat light motion