Simple science

  1.What is pressure? Ans -  Pressure is the perpendicular force applied on the surface of the liquid per unit area.  Formula -                     P= F/A Where ,                F = force                 A= area  2.What is the unit of pressure?  Ans - Pascal (Pa)  3.Example of pressure  Ans-  Best example from which we can explain the pressure is Straw with the help of which we drink water or any liquid.  As you already know that it is the most funniest moment to drink with straw. But you ever wonder how straw works? and Have you ever been thought how straws work and how they holds water? So it's all because of science. Did you know the concept of air pressure?  So air pressure is the pressure exerted by atmospheric air. When was see a glass which doesn't has any liquid in it so that we say it is emp...