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Nelson Education > School > Secondary Science > Physics 12 > Teacher Centre > Web Activities > Chapter 9
 

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UNIT 4 - THE WAVE NATURE OF LIGHT

Chapter 9 - Waves and Light

9.3 Interference of Waves in Two Dimensions

Section 9.3 Questions (p. 460)

  1. We have said that waves in a ripple tank are a "reasonable approximation" to true transverse waves.
    1. Research the Internet and other sources and report on how the behaviour of a particle in a water wave does not exhibit strict transverse wave characteristics.
    2. When water waves enter very shallow water, for example as they approach a beach, they not only slow down but also curl and "break." Explain this behaviour using the information you obtained in (a).

    Water Waves Main Page
    A website that gives information on real and artificial waves. In particular, look at the section on modelling water waves.

    Ocean Wave Education

    Lots of links to research institutes and the work they are doing on waves.

    Animations
    GIF animations of different wave effects.

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Chapter 9 Review (p. 491)

  1. Every autumn, some storms off Nova Scotia and the eastern seaboard of the United States create waves up to 35 m high. Often, rogue waves can appear from the storms hundreds of kilometres away, so their creation is not just the effect of high winds. Previous storms have been modelled to help marine forecasters better predict wave arrivals. Research the Internet for the latest research on how these waves are created and for the latest improvements in forecasting techniques. Present your findings in a creative way.

    National Oceanic and Atmospheric Administration
    NOAA warns of dangerous weather, charts our seas and skies, guides our use and protection of ocean and coastal resources, and conducts research to improve our understanding and stewardship of the environment which sustains us all.

    Coast Guard

    Actual photos and analysis of the storm that is documented in the book The Perfect Storm by Sebastian Junger.

    Predicting Hurricanes
    A great discussion of how hurricanes form, including satellite shots and how they help people predict the storms.

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