Question

Classify each material as a polymer or a composite. plywood ,plastic, concrete ,fiber glass ,paper ,nylon

Answer 1

A polymer is a single chained molecule that is  made up of repeating subunits called monomers. In contrast, a composite is a material that is made from combining two or more molecules with similar physical or chemical properties to produce a hybrid molecule.

Plywood- it is a composite made from sticking together thin strips of wood with glue to ake stable sheets.

Plastic- a polymer made of repeating units called monomers of some kind of organic compounds.

concrete- is a composite made from mixing water cement and rocks. The mixture is not repeating and can branch in different ways which discounts it from being a polymer.

fiberglass- is a composite made that has no repeating units but made from plastic and glass fiber.

paper- is a polymer made of a repeating units of a specific monomer.

nylon- is a polymer manufactured by reacting repeating units of monomers.

Answer 2

Plywood: Composite
Plastic: Polymer
Concrete: Composite
Fiber: Could be either or depending on the type of Fiber
Glass: Composite, yet made of polymers
Paper: Could be either. For example composite would be paper mache or recycled paper however plain paper would be polymer.
Nylon: Polymer