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    Physics GCSE

    speed depends on medium

    What speed depends on medium means in Physics GCSE, as defined for AQA.

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    The speed of a seismic wave depends on the properties of the material it is passing through, so it changes sharply when a P-wave crosses from the solid mantle into the liquid outer core.
    AQA · Waves for detection and exploration (physics only) (HT only) (study guide)

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