Composite Materials Quiz

What is a composite material?

• A material made of a single element

• A material composed of two or more materials with different properties

• A material that cannot be recycled

• A material that is only used in construction

How are the physical properties of a composite material superior to those of a single material?

• They combine the properties of individual materials to form a superior material

• They are always heavier

• They are less durable

• They are always more expensive

Describe one advantage of the composite ‘steel reinforced concrete’ over normal concrete.

• It is more flexible

• It can withstand tensile forces

• It is cheaper

• It is lighter

What composite material is used for the manufacture of canoes, car bodies, small swimming pools, water tanks, surfboards, and small boat hulls?

• Steel Reinforced Concrete

• Carbon Fibre Reinforced Polymer

• Glass Reinforced Plastic

• Kevlar

Describe the composition of Glass Reinforced Plastic and its manufacture.

• Composed of steel rods and concrete

• Composed of glass strands woven into fabric, with polyester resin and catalyst added

• A liquid converted into aramid fibers

• Made of carbon fibers woven into a textile with epoxy resin

What is CFRP?

• Copper Fibre Reinforced Polymer

• Composite Fibre Reinforced Plastic

• Carbon Fibre Reinforced Polymer

• Concrete Fiber Reinforced Plastic

What are the physical properties of CFRP?

• Heavy and weak

• Strong and light

• Flexible and dense

• Corrosive and brittle

What is Kevlar?

• A type of concrete

• A type of carbon fiber

• A type of glass

• A liquid converted into aramid fibers

Describe the physical properties of Kevlar.

• Weak and heavy

• Strong, lightweight, corrosion and heat resistant

• Brittle and dense

• Flexible and soft

What are some practical applications of Kevlar?

• Used in bulletproof jackets and military armor

• Used in bridge building

• Used in small swimming pools

• Used in car bodies