Main content

Upthrust
Stella demonstrates how the force of gravity is counteracted by upthrust (buoyancy) in water. She also explains why the upthrust for two objects with equal mass and different densities is not the same.
Duration:
This clip is from
More clips from Physical Processes
-
The force, pressure and surface area of stinging nettles
Duration: 02:07
-
Why do you feel lighter in water?
Duration: 00:46
-
Resistance of different materials
Duration: 01:11
-
The relationship between force, pressure and surface area
Duration: 02:51
More clips from Science in Action
-
Neutralising acids and alkalis—Materials and Their Properties
Duration: 00:32
-
Why do you feel lighter in water?—Physical Processes
Duration: 00:46