Fluid Statics || Class 12 Physics || Note


3.1 Fluid statics: Pressure in a fluid; Buoyancy 
3.2 Surface tension: Theory of surface tension; Surface energy 
3.3 Angle of contact, capillarity and its applications 
3.4 Fluid Dynamics: Newton’s formula for viscosity in a liquid; Coefficient of viscosity 
3.5 Poiseuille’s formula and its application 
3.6 Stokes law and its applications 
3.7 Equation of continuity and its applications 
3.8 Bernoulli’s equation and its applications.

Learning Outcomes
 3.1 State and explain Archimedes principle and Pascal’s law 
3.2 Define up-thrust, pressure in fluid, buoyancy, center of buoyancy and meta center   
3.3 State and use the law of floatation, 
3.4 Describe surface tension and explain its principle 
3.5 Establish the relation between surface energy and surface tension 
3.6 Define angle of contact and capillarity with examples 
3.7 State the Newton’s Formula for viscosity of a liquid and define coefficient of viscosity 
3.8 Differentiate between laminar and turbulent flow & describe Reynolds number 
3.9 Recall and use the Poiseuille’s formula  
3.10 State Stoke’s law and use it to determine the coefficient of viscosity of given liquid 
3.11 Explain equation of continuity and its application 
3.12 Recall the Bernoulli’s equation and explain its uses 
3.13 Solve the numerical problems and conceptual questions regarding the fluid statics 

Fluid Statics & Surface Tension  



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