Further Mechanics

    Cards (7)

    • What is angular displacement?
      The angle something rotates through about a fixed point. (Δθ)
    • Arc length is equal to...
      radius x angular displacement (Δs=rΔθ)
    • What is angular speed, ?
      Rate of change of rotation, rate of change of angular displacement.
    • For a full cycle, ω is equal to
      change in angular displacement divided by change in time
    • For a full cycle, ω is equal to
      2π/T
      where T is the time period
      or
      2πf
      where f is the frequency
    • Do objects in circular motion have the same linear and angular speed?
      No.
    • Linear speed, v, is equal to
      • the change in displacement divided by time (v=s/t)
      • [radius x change in angle] divided by time (v=rΔθ/t)
      • radius x angular speed (v=r)
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