Module 1: Key Terms

Question 1

What is an amorphous?

Answer 1

Amorphous materials are characterised by certain areas of short-range order. An amorphous solid does not have a definite geometric or crystalline shape. Amorphous and the terms non-crystalline and glossy are interchangeable.

Question 2

Define Austenite

Answer 2

Austenite is the face centred cubic (FCC) phase of iron-containing some dissolved carbon.

Question 3

What is a vector?

Answer 3

Any measure that has a magnitude and direction.

Question 4

Define toughness

Answer 4

Toughness is the ability of a material to resist propagation of cracks. It is often identified as the area under a stress-strain graph.

Question 5

Define thermoset

Answer 5

A polymer can be set by heating but cannot be softened by reheating.

Question 6

Define thermoplastic

Answer 6

A polymer that can be softened by heating

Question 7

What is timber?

Answer 7

Timber(or wood) is an organic material consisting of thin-walled tubes made of cullulose. These cellulose ‘tubes’ are bound together with weak glue called lignin.

Question 8

Define stiffness

Answer 8

Stiffness is the resistance of an elastic body to deflection by an applied force.

Question 9

What is steel?

Answer 9

Steel is alloy of iron and up to 2% carbon, often with addition of other alloying elements such as magnanese, silicon, chronium, nickel and molybdenum.

Question 10

What is Atomic bonding?

Answer 10

An electrostatic attractive force within and between atoms that allows the formation of materials containing two or more atoms.

Question 11

Define screw

Answer 11

A screw is form of simple machine used to translate rotary motion into linear motion.

Question 12

What is brass?

Answer 12

Brass is an alloy of copper made up of inc 43% and Zinc