Which answer choice is NOT one of the key areas of materials?

• Ceramics

• Metals

• Fluids

• Polymers

• Composites

Which type of material was the first to be transformed by humans to make a useful object?

• Metals

• Ceramics

• Polymers

• Composites

Plastics are what type of material?

• Metals

• Composites

• Ceramics

• Polymers

Which metal is a ferrous metal?

• Silver

• Titanium

• Iron

• Copper

• Nickel

Synthetic polymers are made of hydrocarbons from what source?

• Plants

• Metal ores

• Sand

• Petroleum

What ceramic material did ancient Romans make from sand?

• Glass

• Bronze

• Steel

• Paper

What is the earliest and most common composite material made by man?

• Iron

• Concrete

• Clay

• Wood

What two substances must a composite material contain?

• A matrix and a reinforcement

• Iron and another metal

• Organic and inorganic substances

• Clay and sand

Metals have a(n) ___________ structure such as face-centered cubic or body-centered cubic.

• organic

• crystalline

• hydrocarbon

• ferrous

Ceramics are lightweight, strong, and stiff, but they can also be ___________.

• ductile

• rusty

• dense

• brittle