Young's modulus is also known as?

Young's modulus is also known as?

• A. modulus of elasticity
• B. shear modulus
• C. bulk modulus
• D. Poisson's ratio

Answer: (A)

Young's modulus measures how stiff a material is under axial loading, describing the ratio of stress to strain in tension or compression within the elastic range. Because it characterizes elastic stiffness, it is commonly called the modulus of elasticity. The other terms describe different properties: the shear modulus relates to resistance to shape change under shear, the bulk modulus to resistance to uniform compression affecting volume, and Poisson's ratio is the ratio of transverse to axial strain, not a modulus. So the best answer is the modulus of elasticity.

Young's modulus measures how stiff a material is under axial loading, describing the ratio of stress to strain in tension or compression within the elastic range. Because it characterizes elastic stiffness, it is commonly called the modulus of elasticity. The other terms describe different properties: the shear modulus relates to resistance to shape change under shear, the bulk modulus to resistance to uniform compression affecting volume, and Poisson's ratio is the ratio of transverse to axial strain, not a modulus. So the best answer is the modulus of elasticity.