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Understanding Potential and Kinetic Energy in Physics

Learn about potential and kinetic energy in physics through concepts like gravitational potential energy and how objects in different positions above a base level have varying energy. Dive into the calculations and units associated, understanding the transfer between potential and kinetic energy.

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Understanding Potential and Kinetic Energy in Physics

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  1. Types of Energy

    SPH3U
  2. Potential Energy An object in a position above a base level has gravitational potential energy, because gravity will act on it to pull it down Like a bank account – stored Eg = mgh Units: kg.m/s2.m = N.m Joules (J)
  3. Kinetic Energy If an object is moving, it has kinetic energy Like cash – easy to use up Ek = ½ mv2 Units: kg.m2/s2 = kg.m/s2.m = N.m Joules (J) Formula is derived on pg 223 of textbook
  4. The Law of Conservation of Energy Energy cannot be created or destroyed, but only transferred from one form to another without any loss The total energy of any closed system always remains the same
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