1. Given the table below: (a) Which will experience the greatest percentage reduction in area? Why? (b) Which is the strongest? Why? (c) Which is the stiffest? Why? Yield Tensile Strain at Fracture Fracture Elastie Modulus (GPa) Material Strength (MPa) Strength (MPa) Strength (MPa) A 310 340 0.23 265 210 100 120 0.40 105 150 C 415 550 0.15 500 310 D 700 850 0.14 720 210 E Fractures before yielding 650 350

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Properties of materials

A property of a material describes its characteristics and distinguishes it from the others. The material properties are described it in terms of its hardness, color, appearances, and so on. The material properties generally depend on the type of material, or whether it is a metal or an alloy. There are different kinds of material properties such as mechanical properties, thermal properties, physical properties, and chemical properties. Chemical properties describe the material in terms of a chemical change. The mechanical properties come into existence when the material is acted upon by an external load. Thermal properties are associated with the temperature of the material and specific heat.