The pendulum

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  • The pendulum
    • Key terms
      • Amplitude of the oscillation
        • The distance from the equilibrium position to highest position on either side
      • Time period
        • The time taken for one complete cycle
          • Depends only on the length of the pendulum
            • Increases with length
      • Equilibrium position
        • The position of the pendulum when it stops moving
      • Frequency of the oscillations
        • The number of complete cycles of oscillation per second
    • Details about a simple pendulum
      • A simple pendulum consists of a mass, called a bob, suspeneded at the end of a string
        • When the bob is displaced to one side and let go, the pendulum oscillates back and forth
          • It does this through the equilibrium position
            • Equilibrium position
              • The position of the pendulum when it stops moving
    • Oscillating motion
      • A pendulum moves to and fro along the same line - this is an example of oscillating motion
      • A playground swing is an example of oscillating motion
        • If not pushed repeatedly, the swing will come to rest
          • This is because energy is transferred due to friction at the top of the spring and due to air resistance

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