Smart Materials, Composities and Technical Textiles

What is the definition of "Smart Material"?

• A material that is very clever

• A material whose properties change in response to the change in the environment

• A change in the material properties only when it's light and dark

• A type of material that is only used by intelligent people

A material that provides a visible light when exposed to a current, is called what?

• Electroluminescent

• Luminescent

• Electrolight

• Lightbulb

SMA is what?

• System Metal Alloy

• Shape Memory Alloy

• Shape Metal Allowance

• Size Memory Alloy

What type of Smart Material changes colour in response to heat?

• Photochromic pigment

• Thermochromic pigment

• Shape Memory Alloy

• Polymorph

What is an advantage of using composite materials?

• You mixed one material with water to get a desirable property

• You collect raw materials from the ground that have selected properties

• You combine two or more materials together to get desirable properties

• You combine two or more materials together to get the worst properties

What is the definition of "Phase-changing Materials"?

• Breathable, waterproof and window fabrics by allowing a flow of air in and out with three or more layers

• Encapsulated droplets on fibres and materials that change between liquid to solid form within a temperature range

• Lightweight, versatile and thin fabric fibres that allow for good strength to weight ratio

• Engineered with certain performance characteristics that suit a particular function

Why do Firefighters wear Rhovyl?

• Anti-bacterial, chemical resistant, windproof

• Absorbs UV radiation, tightly woven fabric, lightweight

• Non-flammable, waterproof, dries quickly

• Non-flammable, lightweight, rigid

Kevlar is used for a stabproof vest and other protective clothing, why is this?

• The fibre is woven together in a lattice that provides protection

• The fibre is melted together in a circle that provides protection

• The fibre is glued together in a square that provides protection

• The fibre is woven together in a line that provides protection

What type of material can SMA be?

• Polymer

• Metal

• Wood

• Fabric

How does biomimetics benefit swimmers?

• It mimics nature such as the shark's sand-paper like skin

• It mimics the environment such as the wet water

• It mimics the nature such as the feathers of a bird

• It mimics the environment such as an ocean floor