An Analysis of the Thinking Behind Archimedes Principle of Buoyancy Essay

Archimedes principle states that a body that has been immersed in a fluid is buoyed up by a force that is said to b equal to the weight of the fluid that has been displaced. This principle is applicable to both submerged and floating bodies and to all fluids in general. Fluids here refer to both gases and liquids. Buoyancy is this force that is exerted by a fluid that counteracts the weight of the object (Pickover, pp. 12-23). In a fluid column, the pressure increases with the depth of the fluid occasioned by the weight of the overlying liquid or gas. Therefore, a fluid column or an object submerged in a given fluid will experience a greater pressure at the base than at the top. The difference in the pressure amounts to a net force that accelerates the object in the fluid upwards. The magnitude of the upward force is equivalent to the difference between the bottom and the top of the column. This is also equivalent to the fluid weight that would otherwise occupy the column.While Archimedes principle asserts that the volume of the water displaced from a container when an object is immersed in it is equal to the volume of that object, buoyancy is the weight of that displaced fluid. Archimedes and buoyancy explain the reason why ships float as well as the balloon rise in air as well as the apparent weight loss of objects when they are under water. Therefore, both Archimedes principle and buoyancy are backed by Newtons third law of motion where the mutual forces of action and reaction that exist between two bodies are equal but opposite and collinear (Pickover, pp. 12-23). For the Archimedes principle, an object being immersed in a container full of fluid only displaces fluid volume equal to its volume. The up-thrust is an equal but opposite reaction to the weight of the object being immersed. The force that the fluid exerts...

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