Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 5: ASSESSMENT ZONE

Give one word for: The force that keeps the Earth revolving around the Sun.

Give one word for: Force acting per unit area.

Name the force between two charged bodies.

Give one word for: Force exerted by a machine. (choose from: Chemical force, Mechanical force, Thermal force)

If $300 \mathrm{N}$ of force is acting on an area of $50 {\mathrm{m}}^2$, then the pressure acting on this area will be $K \mathrm{Pa}$. Find the value of $K$.

What will be the pressure exerted by the object if $5000 \mathrm{N}$ of force is acting on an area of $200 {\mathrm{cm}}^2$? (in pascal)

Find out the area of a body which experiences a pressure of $500 \mathrm{Pa}$ by a force of $100 \mathrm{N}$ (in ${\mathrm{m}}^2$)?

What will be the force required to exert a pressure of $20,000 \mathrm{Pa}$ on an area of $1 {\mathrm{cm}}^2$? (Give the solution in SI units).

Suppose the answer is $1 \mathrm{N}$, just type $1$.