Liquid Density

The video tutorial explains buoyancy as the upward force that balances weight and keeps objects afloat. It explores how the density of surrounding liquids affects buoyancy through an experiment using displacement tanks and measuring cylinders. The experiment demonstrates that different liquids have varying densities, affecting how objects float. Saltwater is denser than freshwater, and oil is the least dense. The tutorial also discusses the practical implications of buoyancy, such as how ships sit differently in seawater and rivers, and the significance of the Plimsole line on ships.

Compare the densities of salt water, freshwater, and oil based on the experiment's findings.

How does seawater density compare to freshwater density in rivers?

Explain the significance of the Plimsole line on a ship's hull.