Pascal's principle states that the transmission of pressure exerted on a fluid (liqiod or gas) in an enclosed system is uniform throughout the fluid and in all directions.
| Operating principle of hydraulic system |
- The transmission of pressure on all directions
- The hydralic system is made up of 2 cylindrical pistons of different surface areas
- The fluid is water or oil
- Pressure exerted by the small piston is the same as the pressure produced at the large piston
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Pressure at small piston = Pressure at large piston
\(\frac{\text{Input force}}{\text{Area of small piston}}\)\(= \frac{\text{Onput force}}{\text{Area of large piston}}\)
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| Application of Pascal's Principle in daily life |
- Hydralic jack system
- Hydralic breake system
- Dental chair
Bernoulli's principle: when the fluid flows through the narrow part, its velocity increases and the pressure in that region decreases
| Application of Bernoulli's principle in daily life |
- Aerofoil-shaped wings of an aeroplane
- Bunsen burner
- Helicopter
- Drone
- Safety lines nearby tracks at railway station
