Here's a breakdown:
* Buoyancy is an upward force exerted by a fluid (like water) that opposes the weight of an immersed object.
* This force is caused by the difference in pressure between the bottom and top of an object submerged in the fluid. The pressure at the bottom of the object is higher than the pressure at the top due to the weight of the fluid above it.
* Archimedes' Principle states that the buoyant force on an object submerged in a fluid is equal to the weight of the fluid displaced by the object.
So, when you're in a pool or a bathtub, the water is pushing up on you with a force equal to the weight of the water you displace. This is why you feel lighter in water!
