Smart and Modern Materials

Question 1

What defines a smart material?

Answer 1

A smart material is defined as a material whose physical properties change in response to an input.

Question 2

How do smart materials react to their environment?

Answer 2

Smart materials react to external stimuli or changes in the environment without human intervention.

Question 3

What is Hydrochromic Ink?

Answer 3

Hydrochromic Ink changes colour with water.

Question 4

What does Thermochromic Pigment/Paint do?

Answer 4

Thermochromic Pigment/Paint changes colour with heat.

Question 5

What is the function of Photochromic Material/Dye?

Answer 5

Photochromic Material/Dye changes colour with light.

Question 6

What is a Shape Memory Alloy (SMA)?

Answer 6

A Shape Memory Alloy changes shape with heat.

Question 7

What is the characteristic of Phosphorescent Material?

Answer 7

Phosphorescent Material glows in the dark.

Question 8

What does Quantum Tunnelling Composite (QTC) do?

Answer 8

QTC is a soft electrical switch that allows an electrical current to flow when compressed.

Question 9

What is Polymorph?

Answer 9

Polymorph is a thermoplastic used for prototyping that can be reheated and reused.

Question 10

Hydrochromic paint is used in which Apple product feature?

Answer 10

Hydrochromic paint is added to the charger socket of the Apple iPhone to detect water damage.

Question 11

What is the application of Phosphorescent Materials?

Answer 11

Phosphorescent Materials are used for safety lighting, signage, and glow-in-the-dark products.

Question 12

What do Thermochromic paints react to?

Answer 12

Thermochromic paints react to heat.

Question 13

What is a Modern Material?

Answer 13

Modern materials are technical materials manufactured for function.

Question 14

What is Graphene known for?

Answer 14

Graphene is stronger than steel, flexible, and conducts heat and electricity.

Question 15

What are the properties of Titanium?

Answer 15

Titanium is strong relative to its weight and is anti-corrosive.

Question 16

What are Metal foams?

Answer 16

Metal foams are strong, lightweight, electrically and thermally conductive materials.

Question 17

Define Nanomaterials.

Answer 17

Nanomaterials are materials that are between 1 and 100 nanometres in size.

Question 18

What is the function of Fibre Optics?

Answer 18

Fibre Optics are strands of pure glass designed to transmit signals.

Question 19

What are Corn Starch Polymers?

Answer 19

Corn Starch Polymers are compostable plastics that are biodegradable.

Question 20

What is the significance of titanium in medical applications?

Answer 20

Pure titanium does not react to medical procedures and is used in artificial joints and dental implants.

Question 21

How do Shape Memory Alloys work?

Answer 21

Shape Memory Alloys change shape easily and return to their original shape when heated.

Question 22

What are the typical uses of Nanomaterials?

Answer 22

Nanomaterials are used in car manufacturing, insulation, lighting systems, and as coatings on computer chips.

Question 23

What is the structure of Graphene?

Answer 23

Graphene is a 2D honeycomb lattice carbon structure that is one atom thick.

Question 24

How are Metal foams produced?

Answer 24

Metal foams are made by injecting gas into liquid metal.

Question 25

True or False: Thermochromic pigments enhance the safety of products.

Answer 25

True