Define the term Buoyancy. Why does object float or sink when placed over the surface of the water.
Define the term Buoyancy. Why does object float or sink when placed over the surface of the water.
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An object floats when it's density is less than that of water and the upthrust is more than the weight of the object . An object sinks when it's density in more than that of water and the upthrust is less than the weight of the object. Example... An iron nail sinks in water whereas a cork floats on the surface of water.
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The ability or tendency of something to float in water or other fluid.if the buoyant force is more than the weight of object, then theobject will float on water. If buoyant force is less than the weight of the object, then theobject will sink in water. This upward force acting on theobject, when an object is immersed in water is called the buoyant force.