What is the general term for a material that combines two or more different materials to achieve better properties?

• A. Composite
• B. Ceramics
• C. Glass
• D. Epoxy Resin

Answer: (A)

When two or more different materials are combined to create one new material with properties that aren’t as good in any single component, you get a composite. The idea is to use a reinforcement (like fibers) embedded in a matrix (such as a resin or cement) so load is transferred efficiently and the overall material has a tailored set of properties—often higher strength or stiffness for the same weight.

Fiberglass, for example, uses glass fibers in a polymer matrix to achieve strength and lightness. Concrete blends cement paste with aggregates to improve compressive strength and durability. Each of these is a composite because it’s built from distinct materials that work together to surpass what a single material could provide.

The other options describe specific materials on their own—ceramics are a broad class of inorganic solids, glass is an amorphous solid, and epoxy resin is a single polymer material. They don’t inherently denote a combination of materials to gain new properties, which is the defining idea behind composites.