Conceptual Check on Elasticity.
I. Elasticity is the property by virtue of which a body opposes any change in its shape or size.
II. A body is said to be perfectly plastic if it retains its deformed state completely after the deforming force is removed.
III. Fluids (liquids and gases) possess volume elasticity (Bulk modulus) but no shape elasticity (Shear modulus).
IV. The adiabatic bulk modulus of a gas is greater than its isothermal bulk modulus.
V. Modulus of elasticity is dimensionally equivalent to pressure.
