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  • Buoyant force (article) - Khan Academy
    The name of this upward force exerted on objects submerged in fluids is the buoyant force So why do fluids exert an upward buoyant force on submerged objects? It has to do with differences in pressure between the bottom of the submerged object and the top Say someone dropped a can of beans in a pool of water Not again!
  • Archimedes principle and buoyant force (video) | Khan Academy
    Explore Archimedes' principle and the buoyant force in fluid dynamics Understand how pressure varies with depth and acts in all directions, leading to the upward net force on submerged objects This principle explains why objects float and is key to fluid displacement and the concept of buoyancy
  • Buoyant force (article) | Gravity | Khan Academy
    The name of this upward force exerted on objects submerged in fluids is the buoyant force So why do fluids exert an upward buoyant force on submerged objects? It has to do with differences in pressure between the bottom of the submerged object and the top Say someone dropped a can of beans in a pool of water Not again!
  • Buoyant force (video) | Fluids | Khan Academy
    The buoyant force is a net upward force exerted on an object by a fluid The buoyant force results from the increase in fluid pressure with depth The magnitude of the buoyant force exerted on an object by a fluid is equal to the weight of fluid displaced by the object (ρVg)
  • Khan Academy
    Khan Academy Khan Academy
  • Buoyant force example problems (video) | Khan Academy
    A couple of problems involving Archimedes' principle and buoyant forces
  • Buoyant force (practice) | Fluids | Khan Academy
    Check your understanding of buoyant force in this set of free practice questions
  • Khan Academy
    Oops Something went wrong Please try again Uh oh, it looks like we ran into an error You need to refresh If this problem persists, tell us
  • Archimedes principle buoyancy (video) | Khan Academy
    And we call this force the buoyant force This occurs because in fluids, due to gravity, the pressure at the bottom is always more than the pressure at the top And as a result, when you add up these forces, there will always be a net upward force And how do we calculate this buoyant force?
  • 浮力是什么？ (文章) | 浮力与阿基米德原理 | 可汗学院
    我们可以通过使用压强 P = F A 的定义将这些力与压强联系起来，这个定义可以求出力的值， F = P A 。所以向上施加在罐子底部的力 上 底 部 F 上 = P 底 部 A ，同时向下施加在罐子顶部的力是 下 顶 部 F 下 = P 顶 部 A 。将这些表达式分别代入前一个方程中的每个 F ，





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