Which of these is a typical property of clay ceramics?
Good electrical conductor
High melting point
Malleable
Which of these is a typical property of glass?
Transparent
Opaque
Low melting point
Which of these is a typical property of metals?
Low density
Dull
Ductile
Which of these is a typical property of polymers?
Good heat conductor
Chemically reactive
Poor electrical conductor
Which of these polymers is used for the coating in non-stick pans?
PVC
PTFE
LDPE
What is a composite material?
A substance consisting of two or more materials with contrasting properties
A substance consisting of two or more materials with identical properties
A substance consisting of one material with an unusual property
What is the matrix in chipboard?
Wood chips
Resin glue
Cement
What is usually added to concrete to reinforce it?
Steel rods or mesh
Glass fibres
Horse hair
Which metal is most suited to making the inside of a dishwasher?
Mild steel
Tool steel
Stainless steel
What determines how easily a material is crushed?
Its compressive strength
Its tensile strength
Its elastic limit