Speed and acceleration

  • Overtake
    problem

    Overtake

    Age
    14 to 16
    Challenge level
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    Tom and Tim are travelling towards Glasgow, but leave at different times. If Tim overtakes Tom, how fast is he travelling?

  • Bike Shop
    problem

    Bike Shop

    Age
    14 to 16
    Challenge level
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    If I walk to the bike shop, but then cycle back, what is my average speed?

  • There and back
    problem

    There and Back

    Age
    14 to 16
    Challenge level
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    Brian swims at twice the speed that a river is flowing, downstream from one moored boat to another and back again, taking 12 minutes altogether. How long would it have taken him in still water?

  • Swimmers
    problem

    Swimmers

    Age
    14 to 16
    Challenge level
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    Swimmers in opposite directions cross at 20m and at 30m from each end of a swimming pool. How long is the pool ?

  • Alternative Record Book
    problem

    Alternative Record Book

    Age
    14 to 18
    Challenge level
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    In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.

  • Paradoxes
    article

    Paradoxes

    A paradox is a statement that seems to be both untrue and true at the same time. This article looks at a few examples and challenges you to investigate them for yourself.