Sri Ramakrishna Mission Vidyalaya Polytechnic College, Coimbatore - 641 020

          Pressure  is defined as the force applied at the right angles to the surface of an object per unit area over which that force is distributed. Pressure is defined as the Force per unit area. The SI unit for pressure is N/m 2 . Pressure Formula The formula used to calculate the applied pressure is, ·         P = F/A ·         P = mg/A where, P is the Pressure. F is the Magnitude of the Force Applied. A is the Surface Area in Contact Unit of Pressure The SI unit of pressure is  Pascal (Pa)  and is denoted by the letter ‘p’ Dimension of Pressure is,  [ML-1T-2]   Types of Pressure We can easily classified pressure into different categories that include, ·         Absolute Pressure ·         Gauge Pressure ·         Differe...

  FLUIDS Fluids are substances that flow easily and take the shape of their container. They include liquids and gases. Examples of fluids: Water Oil Honey Molten metal Air Helium Properties of fluids: Fluids are incompressible.  This means that they cannot be compressed to a smaller volume without a significant increase in pressure. Fluids exert pressure in all directions.  This is known as Pascal’s law. Fluids flow from areas of high pressure to areas of low pressure.  This is known as Bernoulli’s principle. Applications of fluids: Fluids are used in a wide variety of applications, including: Transportation (cars, airplanes, boats) Heating and cooling (radiators, air conditioners) Hydraulic systems (lifts, brakes) Lubrication (oil, grease) Medicine (blood, IV fluids) Fluids in nature: Fluids are found all around us in nature. Some examples include: Water in the oce...