🔍 Key Concepts

• Center of buoyancy – where the upward buoyant force is considered to act • Difference between center of gravity (G), center of buoyancy (B), and center of flotation (F) • Underwater volume vs. waterplane area

💭 Think About

• Ask yourself: which point is defined specifically by the shape and position of the submerged volume of the hull? • Which of these terms is associated with weight of the vessel, and which with the upthrust (buoyancy) from the water? • Which point deals with the waterplane area at the surface rather than the whole underwater volume?

✅ Before You Answer

• Identify which option is linked to the upward buoyant force (not weight) • Eliminate any options that describe gravity or free surface corrections rather than underwater volume • Make sure you are not confusing the point related to the waterplane area with the one related to the entire submerged volume