States of matter: solids, liquids and gases Concept of fluid. Density. 

Pressure in fluids. Pressure dependence on height or depth. 

Pascal's Principle. Hydro-static paradox. Hydraulic press. 

Atmospheric pressure. Absolute and gauge pressure. Measuring atmospheric pressure. Torricelli's experiment and  mercury barometer.

How to get the pressure on the top of the Mount Everest?

Buoyancy and Archimedes Principle.  Floating and sinking. Role of density. 

Specific gravity. Partially submerged objects. How to find the buoyant force for floating objects.  

Practice Assignments: