(i) Why does a bucket of water feel heavier when taken out of water?
(ii) Lead has greater density than iron and both are denser than water. Is the buoyant force on a lead object greater than, less than or equal to the buoyant force on an iron object of the same volume?
(i) A bucket of water feels heavier when taken out of water because when immersed in water, an upward force, i.e. buoyant force acts on it which is equal to the weight of water displaced by the bucket.
(ii) The buoyant force on a lead object is lesser than the buoyant force on the iron object because lead has greater density, so it displaces lesser amount of water consequently lesser amount of buoyant force acts on it.