Vaishali Gupta, Supriya D. Seshadri and, Shalini Bajaj Solutions for Exercise 3: Exercises

Write one word for the following:

Force per unit area

Liquid and gas together are called:

An instrument to measure atmospheric pressure is known as 

Give one word for the following:
An instrument used for measuring the condition of a fluid (liquid or gas).

Describe any two applications of pressure?

A force of $25 \mathrm{N}$ acts on an area of $25$ ${\mathrm{cm}}^2$. Calculate the pressure produced.

What is the force needed to produce a pressure of $1$ Pascal over a square area of side $2 \mathrm{m}$?

Over what area should a force of $100 \mathrm{N}$ act to produce a pressure of $500 \mathrm{Pa}$?