Ceramics, composites and polymers

Examples of natural polymers are:

• Cotton, wool and rubber

• CFRP, nylon and resin

• Brick, cement and clay

What type of material is a house brick?

• Ceramic

• Polymer

• Composite

Why is reinforced concrete a good building material?

• It is very lightweight

• It is waterproof

• It is strong and flexible

What type of material is reinforced concrete?

• Composite

• Ceramic

• Polymer

The properties of a composite material is.....

• are the properties of the most reactive material in the mixture

• are completely new properties

• are combination of the properties of the materials in the mixture

An example of a synthetic polymer is ____.

• wool

• PVC

• rubber

• cotton

Ceramics are used for insulating electrical power lines because.......

• They have high melting points

• They do not conduct electricity

• They have low melting points

• They are strong and durable

Which of the following is NOT TRUE for chemical properties of ceramics?

• They do not react with water

• They have similar properties to each other

• They do not react with acids or alkalis

• They react with water, acids and alkalis

Which of the following is a property of polymers?

• They are always brittle

• They can be flexible

• They conduct electricity

What is a common use for ceramics in construction?

• As a conductor of electricity

• As a thermal insulator

• As a flexible material