Which term describes properties related to the relationship between stress and strain in a material?

• A. Non-toxic
• B. Mechanical properties
• C. Paper-based rapid prototyping
• D. Particle boards

Answer: (B)

Understanding how a material behaves when forces are applied is all about its mechanical properties. These describe the material’s response to stress, including stiffness (elastic modulus), yield and tensile strength, ductility, and toughness. When you’re asked for terms that describe properties related to the relationship between stress and strain, the correct idea is mechanical properties because that category encompasses how a material deforms and returns (or doesn’t) under load. The other options don’t fit this context: non-toxic relates to safety or biocompatibility, paper-based rapid prototyping is a fabrication process, and particle boards refer to a type of material rather than how materials respond to force.