Material Properties

Question 1

Electrical Conductivity

Answer 1

-If current can flow through a material with little resistance
conductive - Copper, silver
Insulator - wood

Question 2

Thermal Electricity

Answer 2

-If heat can pass through a material
-depends on shape and material
-silver, copper and gold

Question 3

Tensile Strength

Answer 3

-the ability to withstand a stretching force, breaking or deformation
-Kevlar, diamond, titanium
-good atomic structure

Question 4

Elasticity

Answer 4

-goes back to original form when deformed
-however, permanent plastic deformation
-galvanised steel wire

Question 5

Malleability

Answer 5

-Ability to deform without cracking and breaking
-copper, gold, aluminium
-nickel is not

Question 6

Plasticity

Answer 6

-the ability to deform under stress without breaking while retaining the deformed shape after the load is lifted
-natural clay
-low plasticity = elastic

Question 7

Hardness

Answer 7

-Resistance of abrasive wear
-scratches, dents, cutting
-Glass, iron
-polymers = not hard

Question 8

Ductility

Answer 8

-ability to be stretched, pulled, or drawn into a thin wire/thread without breaking
-copper to wire
-zinc = not

Question 9

Toughness

Answer 9

-ability to absorb shock loading force without breaking or cracking
-steel, bricks, titanium
-ceramics = not

Question 10

Durability

Answer 10

-withstanding stress for a long time
-long lasting
-steel
-bricks = not

Question 11

Biodegradability

Answer 11

-ability of a material to degrade
-paper straws, napkins