SUMMARY
A ball sinks in water due to the gravitational force (mg) exceeding the buoyant force (Vpg), which is insufficient to keep it afloat. Unlike on solid ground, where the normal reaction force (N=mg) supports the ball, water provides a buoyant force that varies with density. A less dense ball floats, while a denser object, such as a metal ball bearing, sinks. This phenomenon highlights the differences in density and phase between solids and liquids.
PREREQUISITES
- Understanding of buoyancy and Archimedes' principle
- Knowledge of density and its impact on floating and sinking
- Familiarity with the concepts of gravitational force and normal reaction force
- Basic principles of solid and liquid states of matter
NEXT STEPS
- Research Archimedes' principle and its applications in fluid mechanics
- Explore the concept of density and how it affects buoyancy
- Study the differences between solid and liquid states of matter
- Investigate surface tension and its role in allowing small insects to walk on water
USEFUL FOR
Students studying physics, educators teaching fluid mechanics, and anyone interested in understanding the principles of buoyancy and density in real-world applications.