Mechanical And Physical Properties/ Material Selection

Question 1

Strength

Answer 1

Resistance to deformation

Question 2

Elasticity

Answer 2

Ability to return to original shape after stressed

Question 3

Plasticity

Answer 3

Ability to be shaped

Question 4

Toughness

Answer 4

Resistance to fracture when under stress

Question 5

Hardness

Answer 5

Ability to withstand being scratched, cut or dented

Question 6

Durability

Answer 6

How well a material wears over time

Question 7

Brittleness

Answer 7

Material that fractures with little to no deformation

Question 8

Density (Physical)

Answer 8

Mass of 1 cubic cm of a substance

Question 9

Electrical conductivity (physical)

Answer 9

Ability to conduct electricity

Question 10

Thermal conductivity (physical)

Answer 10

Ability to conduct heat

Question 11

Things to consider when choosing a material (6)

Answer 11

Functional requirements
Manufacturing demands (scale of production, sustainability)
Environment
Availability (sizes)
Cost
Joining methods