2: Performance Characteristics of Materials

Question 1

Conductivity (Thermal)

Answer 1

Allows transfer of heat energy through material

Question 2

Conductivity (Electrical)

Answer 2

Allows flow of electrical current through material (Brass, Copper)

Question 3

Strength

Answer 3

Bending, Compressive, Tension, Shear, Torsion

Question 4

Elasticity

Answer 4

Ability to be deformed & then returned back to original form after force is removed (rubber bands)

Question 5

Plasticity

Answer 5

Ability to be permanently deformed (shaped) & retain deformed shape (paper clip)

Question 6

Malleability

Answer 6

Ability to withstand deformation by compression without cracking (Gold, Silver, Aluminium, Zinc, Tin, Copper, Lead, Iron)

Question 7

Ductility

Answer 7

Ability to be drawn out under tension & decrease cross-sectional area without cracking (Copper, Gold, Malleable Iron. Mild Steel. Platinum)

Question 8

Hardness

Answer 8

Ability to resist abrasive wear such as scratching, indentation, or cutting (Bronze, Cast Iron)

Question 9

Toughness

Answer 9

Ability to absorb impact force without breaking (Mild Steel, Polycarbonate)

Question 10

Durability

Answer 10

Ability to withstand general wear over a period of time

Question 11

Biodegradability

Answer 11

Ability to naturally decompose by actions of bacteria or other living organisms