Open a free account to start the full syllabus and interactive lessons — Google or mobile number both work.
For small deformations, stress is proportional to strain.
Longitudinal elasticity — how much a wire stretches under load.
Pressure in a liquid grows linearly with depth: P = hρg.
The weight of air above us creates pressure — a mercury column rises 76 cm to balance it.
Submerged body experiences upward force equal to weight of displaced fluid.
Falling sphere reaches a constant terminal velocity due to viscous drag.
Gas pressure arises from molecular collisions with the container walls.
PV = nRT unifies P, V, T for an ideal gas.
At constant T, pressure and volume of a fixed gas mass are inversely proportional.