🔍 Key Concepts

• Center of gravity (G) vs center of buoyancy (B) and what each represents • How the upward buoyant force of the water on the hull is modeled in stability problems • The idea of a ship behaving as if forces act through single points (simplified model)

💭 Think About

• Which point is associated with the weight of the vessel, and which point is associated with the support from the water? • When a vessel is floating upright and at rest, where can you think of the resultant upward force of the water as acting? • Which of the listed choices is an actual defined stability term used in naval architecture, and which sound more like general locations on the ship?

✅ Before You Answer

• Be sure you can define center of gravity (G) and center of buoyancy (B) in your own words • Check which answer choice refers to a point related to the shape of the underwater volume of the hull • Eliminate options that are just physical locations (like parts of the ship) rather than hydrostatic force points