A.2.11—Buoyancy Topic Practice
A.2.11—Buoyancy Topic Practice
Practise using upthrust as the weight of displaced fluid to calculate buoyancy, compare floating cases and derive density relationships.
How this is tested
- calculate buoyancy from displaced mass or volume using Fb = ρVg, often showing a result in mN or N
- set weight equal to upthrust for floating objects to derive ratios such as submerged depth over height
- link displaced water to floating equilibrium to predict outcomes, such as no water-level change when ice melts