📖 what
What is buoyancy?
Quick Answer
Buoyancy is the upward force a fluid exerts on an object immersed in it. It is what makes things float or sink.
The Full Story
Buoyancy arises because fluid pressure increases with depth, so the bottom of an object in a fluid experiences more pressure than the top. Archimedes described the principle in ancient Greece: the buoyant force equals the weight of the fluid displaced. If the buoyant force is greater than the object’s weight, the object floats; if it is smaller, the object sinks. Buoyancy explains why ships made of steel can float and why hot-air balloons rise in air. It is a central idea in fluid mechanics.
Key Facts
1.Described by Archimedes
2.Equal to the weight of displaced fluid
3.Explains floating and sinking
YouTube Angle
Suggested video title for this topic:
"Why huge ships float and tiny rocks sink"
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