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Buoyancy & Buoyant Force definitions

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  • Buoyancy
    The phenomenon causing objects to float or rise in a liquid due to pressure differences.
  • Buoyant Force
    The upward force exerted by a fluid on a submerged object, equal to the weight of the fluid displaced.
  • Archimedes' Principle
    States that the buoyant force on a submerged object is equal to the weight of the liquid displaced.
  • Density
    The mass of an object divided by its total volume, crucial for solving buoyancy problems.
  • Equilibrium
    A state where the net force is zero, often occurring when buoyant force equals gravitational force.
  • Apparent Weight
    The weight of an object in a fluid, affected by buoyant force, measured by tension or normal force.
  • Pressure Difference
    The variation in pressure between the top and bottom of a submerged object, causing buoyant force.
  • Volume Submerged
    The portion of an object's volume that is underwater, crucial for calculating buoyant force.
  • Normal Force
    The force exerted by a surface to support the weight of an object resting on it, often counteracting gravity.
  • Tension
    The force transmitted through a string or cable when it is pulled tight by forces acting from opposite ends.
  • Gravitational Acceleration
    The acceleration due to gravity, typically 9.8 m/s² on Earth, used in buoyancy calculations.
  • Liquid Density
    The mass per unit volume of a liquid, a key factor in determining buoyant force.
  • Floating
    The condition where an object remains on the surface of a liquid due to its lower density.
  • Sinking
    The condition where an object descends in a liquid due to its higher density compared to the liquid.
  • Suspended
    The state where an object remains submerged but does not sink or rise, having equal density to the liquid.