Hello
user
Hello! How can I help you today?
assistant
What is buoyancy?
user
Buoyancy is the upward force exerted by a fluid, like water or air, on an object that's partially or fully submerged in it.
assistant
Why do objects float or sink in water?
user
Objects float if they're less dense than the fluid they're in, and they sink if they're more dense. Density is the amount of mass per unit volume of a substance.
assistant
Is that why a rock sinks in water?
user
Yes, that's correct. Rocks are generally denser than water, so they experience a downward force and sink.
assistant