Properties and characteristics of engineering materials

Question 1

heat combustion(chemical)

Answer 1

the amount of energy that is released as heat when a substance is burned with oxygen

Question 2

toxicity(chemical)

Answer 2

how much a substance can damage an animal, plant, cell, organ or other organisms is its toxicity

Question 3

oxidation state(chemical)

Answer 3

ability to oxidise is what takes place by gaining oxygen

Question 4

conductivity(electrical)

Answer 4

when materials allow current to pass through them easily

Question 5

resistance(electrical)

Answer 5

the ability of a material to oppose the flow of electric current

Question 6

magnetism(electrical)

Answer 6

this is a force that can attract or repel objects that have a magnetic material like iron inside them

Question 7

strength(mechanical)

Answer 7

tensile - resist stretch/pull force

Question 8

toughness(mechanical)

Answer 8

to be able to withstand sudden impact

Question 9

hardness(mechanical)

Answer 9

resist abrasive wear(sandpaper)

Question 10

elasticity(mechanical)

Answer 10

to be able to flex and bend

Question 11

plasticity(mechanical)

Answer 11

permanently changed by extremal forces(opposite of brittle)

Question 12

ductility(mechanical)

Answer 12

draw to stretch the material out

Question 13

durability(mechanical)

Answer 13

able to withstand wear and tear

Question 14

malleability(mechanical)

Answer 14

with stand deforming under pressure