Buoyancy and Fluid Pressure

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5 Questions

What is the upward force exerted by a fluid that opposes the weight of a partially or fully immersed object known as?

Buoyancy

What does the pressure at the bottom of a column of fluid compared to the pressure at the top of the column?

Greater at the bottom

What is the magnitude of the buoyant force proportional to?

The pressure difference

What is the most common driving force of convection currents in fluid mixtures?

Buoyancy

In which reference frame can buoyancy occur?

Non-inertial reference frame with a gravitational field

Study Notes

Buoyancy and Fluids

  • The upward force exerted by a fluid that opposes the weight of a partially or fully immersed object is known as buoyancy.

Pressure in Fluids

  • The pressure at the bottom of a column of fluid is greater than the pressure at the top of the column.

Buoyant Force

  • The magnitude of the buoyant force is proportional to the density of the fluid, the volume of the displaced fluid, and the gravitational acceleration.

Convection Currents

  • The most common driving force of convection currents in fluid mixtures is differences in density.

Reference Frame for Buoyancy

  • Buoyancy can occur in any reference frame, including a stationary or moving reference frame.

Test your knowledge about buoyancy and fluid pressure with this quiz. Learn about the forces exerted by fluids on immersed objects and the pressure differences in a column of fluid.

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