Which term defines the resistance to deformation under an applied load?

Which term defines the resistance to deformation under an applied load?

• A. Stress
• B. pH
• C. Lattice
• D. Strength

Answer: (D)

Strength describes how well a material can resist deformation or failure when a load is applied. It captures the material’s capacity to withstand stress, with practical forms like yield strength (when deformation becomes permanent) and ultimate tensile strength (the maximum stress before fracture). Because the question focuses on resistance to deformation under load, strength directly embodies that idea. Stress is the internal force per area that arises in response to the load, not the material’s intrinsic resistance to deformation. pH relates to acidity, and lattice refers to the atomic arrangement—neither describes how much deformation a material can endure.

Strength describes how well a material can resist deformation or failure when a load is applied. It captures the material’s capacity to withstand stress, with practical forms like yield strength (when deformation becomes permanent) and ultimate tensile strength (the maximum stress before fracture). Because the question focuses on resistance to deformation under load, strength directly embodies that idea. Stress is the internal force per area that arises in response to the load, not the material’s intrinsic resistance to deformation. pH relates to acidity, and lattice refers to the atomic arrangement—neither describes how much deformation a material can endure.