Material Properties ( from the book )

Question 1

What are the 2 principle categories of material properties ?

Answer 1

Mechanical and physical properties

Question 2

What is Compressive Strength?

Answer 2

The ability to withstand being crushed or shortened by pushing forces ( compression )

Question 3

What is tensile strength

Answer 3

The ability to resist stretching or pulling forces ( tension )

Question 4

What is bending strength ?

Answer 4

The ability to resist stretching or pulling forces

Question 5

What is shear strength ?

Answer 5

The ability to resist sliding forces on a parallel plane ( it prevents the material from its internal structure to slide against itself )

Question 6

What is Torsional strength ?

Answer 6

the ability to withstand twisting forces from applied torque or torsion - the ability to withstand twisting forces when things such as torques ( twisting forces are applied )

Question 7

What is hardness ?

Answer 7

The ability to resist abrasive wear such as scratching, surface indentation or cutting

Question 8

What is toughness ?

Answer 8

The ability to absorb impact forces without fracture ( without breaking )

Question 9

What is Plasticity ?

Answer 9

The ability to be permanently deformed ( shaped ) and retain the deformed shape

Question 10

What is Ductility ?

Answer 10

The ability to be drawn out under tension - reducing the cross-sectional areas without cracking for e.g. stretching a material into a wire

Question 11

What is malleability ?

Answer 11

The ability to withstand deformation by compression without cracking - malleability increases with a rise in temperature - a material is more malleable when its more warm

Question 12

Whats elasticity ?

Answer 12

The ability to be deformed and then return to the original shape when the forces are removed