brittle materials

Question 1

what is malleability?

Answer 1

is a physical property of metals that defines their ability to be hammered, pressed or rolled into thin sheets without breaking

Question 2

what is ductility?

Answer 2

is the ability of a solid material that deforms under tensile stress

Question 3

what is brittleness?

Answer 3

a material is brittle if, when subjected to stress, it breaks without little elastic deformation

Question 4

what is hardness?

Answer 4

is a measure of how much of a material resists changes in shape

Question 5

what are polymers?

Answer 5

are materials made of long, repeating chains of molecules

Question 6

what decides the properties of a polymer?

Answer 6

• chain length
• chemical it is made from
• how strong the force between the chains are
• if the chains are able to slide past each other

Question 7

what are practisers?

Answer 7

are low molecular weighted substances added to a polymer solution to promote it’s plasticity and flexibility

Question 8

what is the crystallinity of a polymer?

Answer 8

the regions of a polymer, where the polymer chains are aligned with one another