What is the relation between pressure, force and area?

Name the quantity whose one of the unit is Pascal $\left(\mathrm{Pa}\right)$.

Define buoyant force.

Define relative density.

A force of $100 \mathrm{N}$ is applied to an object of area $2 {\mathrm{m}}^2$. Calculate the pressure.

State Archimedes' principle.

Explain the concept of thrust and pressure.

Why it is easier to walk on soft sand if you have flat shoes rather than shoes with small heels?