Which term describes the ability to permanently deform in all directions without cracking?

Which term describes the ability to permanently deform in all directions without cracking?

• A. Elasticity
• B. Ductility
• C. Durability
• D. Malleability

Answer: (D)

Malleability describes a material’s ability to be permanently deformed in all directions without cracking, usually when it is pressed or hammered into shapes or rolled into sheets. This means it can flow and change shape without developing fractures, which is exactly what’s described in the prompt. Elasticity would mean the material returns to its original shape after the load is removed, not permanent deformation. Ductility focuses on drawing out a material into wires under tension, not forming it into shapes like sheets in multiple directions. Durability relates to resistance to wear and damage over time, not how it deforms. Metals like gold and aluminum are classic examples of highly malleable materials.

Malleability describes a material’s ability to be permanently deformed in all directions without cracking, usually when it is pressed or hammered into shapes or rolled into sheets. This means it can flow and change shape without developing fractures, which is exactly what’s described in the prompt. Elasticity would mean the material returns to its original shape after the load is removed, not permanent deformation. Ductility focuses on drawing out a material into wires under tension, not forming it into shapes like sheets in multiple directions. Durability relates to resistance to wear and damage over time, not how it deforms. Metals like gold and aluminum are classic examples of highly malleable materials.