Properties of a material

Question 1

What is a Physical property of a material?

Answer 1

Physical properties are things that are measureable. Those are things like density and melting points.

Question 2

What are the physical properties of material (6)

Answer 2

colour, density, melting and boiling points, and electrical and thermal conductivity.

Question 3

physical properties

Density

Answer 3

implies the weight of a material, with higher density rates implying heavier materials

Question 4

physical properties

Colour

Answer 4

the reflective property of a material

Question 5

physical properties

Boiling and melting points

Answer 5

Boiling - the minimum required temperature for a liquid material to change into gas
Melting - the minimum temperature required for a sold to change into a liquid

Question 6

What is a mechanical property?

Answer 6

Mechanical properties are how a material performs when different forces are applied to them.

Question 7

What are examples of mechanical properties of a material (8)

Answer 7

stiffness, toughness, ductility, hardness, and impact resistance, Tensile strength, Malleability

Question 8

How do you test a mechanical property?

Answer 8

Hardness test - tests hardness
Compression and fatigue testing - tests tensile strength
Scratch adhesive testing - tests adhesive failure

Question 9

Mechanical properties

What is Compressive strength?

Answer 9

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

Question 10

Mechanical properties

What is Tensile Strength?

Answer 10

The ability to resist stretching or pulling forces

Question 11

Mechanical properties

What is Stiffness?

Answer 11

The ability to resist forced that may bend the material

Question 12

Mechanical properties

What is Hardness?

Answer 12

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

Question 13

Mechanical properties

What is durability?

Answer 13

The ability to withstand wear, damage or cutting

Question 14

Mechanical properties

What is impact resistance?

Answer 14

The ability to absorb impact force without fracture

Question 15

Mechanical properties

What is Plasticity?

Answer 15

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

Question 16

Mechanical properties

What is elasticity?

Answer 16

The ability to be deformed and then return to the original shape when the force is removed

Question 17

Mechanical properties

What is malleability?

Answer 17

The ability to withstand deformation by compression without cracking.
Malleability increases with a rise in temperature

Question 18

Mechanical properties

What is ductility?

Answer 18

The ability to be drawn out under tension, reducing the cross-sectional area without cracking, for example stretching a material into a wire.

Question 19

Mechanical properties

What is Strength-to-weight ratio?

Answer 19

Comparing the strength of a structure to the amount of weight it can support

Question 20

Chemical properties

What is Flammability?

Answer 20

How a material burns once ignited and the degree of difficulty required to cause combustion

Question 21

Chemical properties

What is biodegradability?

Answer 21

The ability of a material to break down naturally and decompose by the action of microorganisms

Question 22

Physical Properties

What is thermal conductivity (conductor)?

Answer 22

Allows the transfer of heat energy through a material. A material with high thermal conductivity allows the transfer of heat to occur quickly across a material.

Question 23

Physical properties

What is thermal conductivity (insulator)?

Answer 23

Prevents the transfer of heat through the material

Question 24

Chemical properties

What is Corrosion/degradability resistance?

Answer 24

The ability of a material to withstand environmental attacks or decay.

Question 25

Physical properties 
Electrical conductivity (conductor)

Answer 25

Allows the flow of electrical currents through materials

Question 25

Physical properties 
Electrical conductivity (insulator)

Answer 25

Does not allow the flow of electricity through the material

Question 26

What is a chemical property?

Answer 26

a property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed

Question 27

Examples of chemical properties (4)

Answer 27

Flammability, biodegradability, Corrosion and degradation resistance