Static Fluids

The quantity describing the force acting on each unit of area is called ...

The SI unit of pressure is the ...

The hydrostatic pressure of a fluid at rest is given by ...

According to Archimedes' principle, the buoyant force on an object in a fluid equals ...

An object will float on a fluid surface when ...

Pascal's principle states that pressure in an enclosed fluid is transmitted ...

A force of $200\text{N}$ acts on an area of $0.4{\text{m}}^2$. The pressure produced is ...

The hydrostatic pressure at a depth of $3\text{m}$ in water ($\rho =1,000{\text{kg/m}}^3$, $g=10{\text{m/s}}^2$) is ...

An object weighs $60\text{N}$ in air and $45\text{N}$ in water. The buoyant force is ...

In a hydraulic jack, $40\text{N}$ is applied to the small piston. If the large area is five times the small one, the lifting force is ...

An object of density $0.8{\text{g/cm}}^3$ floats in water. The percentage of submerged volume is ...

The total pressure at $2\text{m}$ depth in water ($p_0=1.0\times 10^5\text{Pa}$, $\rho =1,000{\text{kg/m}}^3$, $g=10{\text{m/s}}^2$) is ...

If the force is constant but the area is halved, the pressure becomes ...

An object floats in water with 25% of its volume above the surface. Its density is ...

An object of mass $300\text{g}$ and volume $400{\text{cm}}^3$ floats in water. The buoyant force on it is ... ($g=10{\text{m/s}}^2$)

A wooden cube of side $10\text{cm}$ floats with 60% of its volume submerged. The buoyant force is ... ($\rho =1,000{\text{kg/m}}^3$, $g=10{\text{m/s}}^2$)

A hydraulic pump has a $4\text{cm}$ small piston and a $20\text{cm}$ large piston. If $50\text{N}$ is applied to the small one, the force on the large one is ...

An object weighs $20\text{N}$ in air and $12\text{N}$ when fully submerged in oil ($\rho =800{\text{kg/m}}^3$, $g=10{\text{m/s}}^2$). Its volume is ...

Ice ($\rho =917{\text{kg/m}}^3$) floats in seawater ($\rho =1,025{\text{kg/m}}^3$). The percentage appearing above the surface is about ...

A balloon of volume $0.5{\text{m}}^3$ is in air ($\rho =1.2{\text{kg/m}}^3$, $g=10{\text{m/s}}^2$). The air's buoyant force on it is ...