The smaller the area to which a force is applied the greater the pressure. A polar bear can walk on ice so thin that it would not support the weight of a human. Use the pressure equation to explain this phenomenon. In fluids, pressure increases with depth. Atmospheric pressure decreases when you drive up into the mountains or when you travel up through the atmosphere .
Water pressure increases as a diver swims deeper.
He made major discoveries in geometry, hydrostatics, and mechanics. Floating occurs if the buoyant force is equal to the object's weight. An object must displace or push aside an amount of fluid equal to or greater than its own weight to float. If you observe the fish in your aquarium, you will notice that they can float at different depths. This is accomplished by changing the amount of air in their swim bladder.