Circular motion

  • Whirlyball
    problem
    Favourite

    Whirlyball

    Age
    16 to 18
    Challenge level
    Whirl a conker around in a horizontal circle on a piece of string. What is the smallest angular speed with which it can whirl?
  • Gravity paths
    problem
    Favourite

    Gravity Paths

    Age
    16 to 18
    Challenge level
    Where will the spaceman go when he falls through these strange planetary systems?
  • Motorbike Momentum
    problem

    Motorbike Momentum

    Age
    16 to 18
    Challenge level

    A think about the physics of a motorbike riding upside down

  • 10 Olympic Starters
    problem

    10 Olympic Starters

    Age
    16 to 18
    Challenge level

    10 intriguing starters related to the mechanics of sport.

  • \Little little g
    problem

    Little Little G

    Age
    16 to 18
    Challenge level

    See how little g and your weight varies around the world. Did this variation help Bob Beamon to long-jumping succes in 1968?

  • Earth orbit
    problem

    Earth Orbit

    Age
    16 to 18
    Challenge level

    Follow in the steps of Newton and find the path that the earth follows around the sun.

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