🌈 Rainbow Mindmap: Upthrust in Fluids, Archimedes’ Principle and Floatation

🌈 Rainbow Mind Map: Upthrust, Archimedes’ Principle & Floatation

🔴 What is Upthrust?

Upthrust (or buoyant force) is the upward force exerted by a fluid on an object. It acts opposite to gravity.

🟠 Factors Affecting Upthrust

Upthrust depends on:
✔️ Volume of object submerged
✔️ Density of fluid
✔️ Acceleration due to gravity

🟡 Archimedes’ Principle

When an object is immersed in a fluid, it experiences an upthrust equal to the weight of the fluid displaced.

🟢 Applications of Archimedes’ Principle

✅ Ships and submarines
✅ Hydrometers
✅ Testing metal purity
✅ Design of floats and balloons

🔵 Conditions for Floatation

✔️ Object floats if upthrust = weight
✔️ Sinks if weight > upthrust
✔️ Floats higher if object’s density < fluid

🟣 Density & Floatation

Ice floats on water because its density is lower. Heavy objects like ships float due to design and water displacement.

🟤 Real-Life Examples

🧊 Icebergs
⚓ Ships
⛵ Submarines
🥚 Eggs in saltwater
🎈 Hot air balloons