Definition of buoyant force and how weight and density relate to buoyant force and its ability to float.
Explains the relationship between buoyancy and density using hot air balloons, fish, and cruise ships as examples.
Reviews the definition of buoyant force and how weight and density relate to buoyant force and the ability to float.
Discover how helium provides the buoyancy needed to keep blimps and airships up in the air.
How does a submarine control its buoyancy? Find out in this article on how submarines work.