Pendulum

    Cards (7)

    • Conservation of energy
      Energy can be transferred usefully, stored or dissipated, but it cannot be created or destroyed
    • Energy transfer within a system
      1. Gravitational potential energy at the top
      2. Kinetic energy at the bottom
      3. Gravitational potential energy as it swings back up
    • Friction in the system
      Causes energy to be transferred to thermal energy stores
    • Dissipated energy
      Energy that is wasted and less useful
    • Reducing friction can reduce unwanted energy transfers
    • Lubricant such as oil can reduce friction in the pendulum system
    • Removing air particles from around the pendulum can reduce friction
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