LibraryPhysics EssentialsOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaPhysics concept

A fluid exerts this upward force on an immersed object.

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Your new ahaBuoyant force

That force equals the weight of the fluid displaced. Source: Buoyant force

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More from Physics Essentials

A few more worth knowing.

  1. 25This principle equates buoyant force with the weight of displaced fluid.RECALL
    Archimedes' principle

    The buoyant force equals the displaced fluid's weight

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  2. 26This law makes an ideal spring's restoring force proportional to its displacement.RECALL
    Hooke's law

    Extension is proportional to force within a limit

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  3. 27SI unit of frequencyRECALL
    hertz (Hz)

    One cycle per second

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