All objects experience a buoyant force when immersed in a fluid. As a basis for understanding this concept, students:
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Explain that the buoyant force on an object in a fluid is an upward force equal to the weight of the fluid it has displaced.
Recognize that a change in the pressure at any point in a fluid is accompanied by an equal change at all other points (Pascal’s principle).
Identify that the pressure in an incompressible fluid (e.g., water) is a function of density, rho; depth, y; and gravitational acceleration, g.
Solve problems involving floating and sinking bodies using Archimedes’ principle.
Understand that Bernoulli’s principle, p + ½ rho v² = constant, is a consequence of conservation of mechanical energy applied to a moving, incompressible fluid, and apply it accurately.