Explanation

STEEL is most elastic among the rubber, steel, glass and sponge. Steel having the most steep linear stress-strain curve among all. A stiffer material will have a higher elastic modulus. Young’s Modulus alt. Modulus of Elasticity – is a measure of stiffness of an elastic material. Young’s modulus for steel- 200 GPa Young’smodulus for glass – 50–90 GPa Young’s modulus for rubber – 1 MPa Young’s modulus for sponge – 2–4 GPa A material with a higher Young’s modulus is more elastic.