1.State Hooke's Law of elasticity.
2.Define Young's Modulus, Bulk Modulus, and Shear Modulus.
3.What is Poisson's ratio? Write its theoretical range.
4.Write the expression for strain energy stored in a stretched wire.
5.A steel wire of length $2 \text{ m}$ and cross-sectional area $1 \text{ mm}^2$ stretches by $1 \text{ mm}$ under load $100 \text{ N}$. Find Young's Modulus.
6.Find the elastic potential energy stored in a wire of volume $10^{-4} \text{ m}^3$ stretched under stress $10^7 \text{ N/m}^2$ ($Y = 2 \times 10^{11} \text{ N/m}^2$).
7.Calculate fractional change in volume of a sphere when subjected to uniform pressure of $100 \text{ atm}$ ($B = 1.4 \times 10^{11} \text{ Pa}$).
8.Explain why steel is more elastic than rubber.
