Force and Pressure Exerted by Liquids

When a solid object is immersed in a liquid, _____ force acts on the object because of the volume of liquid displaced.

Explain buoyancy and buoyant force.

Buoyant force is directed_____.

Explain buoyancy.

Which one of the following statements is correct?

Write down three applications of Pascal’s law.

In a hydraulic lift, the surface area of the input piston is $10 {\mathrm{cm}}^2$. The surface area of the output piston is $3000 {\mathrm{cm}}^2$. A $100 \mathrm{N}$ force applied to the input piston raises the output piston. Calculate the force required to raise the output piston.

Liquid pressure decreases with the decrease of depth.

A body will sink if the weight of the body is greater than the buoyant force.

Hydraulic jack is based upon the principle of _____ (Newton's/ Pascal's) law.

Hydraulic press is based upon the principle of _____ law.

Two syringes of different cross-section (without needle) filled with water are connected with a tightly fitted rubber tube filled with water. Diameters of the smaller piston and larger piston are $1\mathrm{ }\mathrm{cm}$ and $3\mathrm{ }\mathrm{cm}$ respectively. If a force of $10\mathrm{ }\mathrm{N}$ is applied to the smaller piston then the force exerted on the larger piston is