15.2. Buoyancy of Fluids http://www.ck12.org
15.2 Buoyancy of Fluids
Lesson Objectives
- Describe the nature of buoyant force.
- State Archimedes’ law.
Lesson Vocabulary
- Archimedes’ law
- buoyancy
- buoyant force
Introduction
The fishing float inFigure15.11 bobs on the surface of the water. The fish in the figure is suspended in the water near
the surface. Why do the float and fish stay on or near the surface? Why don’t they sink? The answer is buoyancy,
another property of fluids.
FIGURE 15.11
A fishing float keeps the fishing line near
the surface so it doesn’t sink to the bottom
of the lake.