GCSE D&T Unit 3 - Modern and Smart Materials

A modern material is a material or element that has been relatively recently discovered, true or false?

• True
• False

A smart material reacts to an _________ stimulus by changing its characteristics and/or properties.

• Internal
• External
• Unique

SMA stands for?

• Shape Motion Alloy
• Self Memory Alloy
• Shape Memory Alloy

Nitinol is an SMA of nickel and titanium, a high temperature is required to allow it to be 'set' into shape, what is this temperature?

• 140ᵒC
• 340ᵒC
• 540ᵒC

Nano materials are measured in which unit?

• Centimetres
• Millimetres
• Nanometres

Reactive glass darkens very quickly when subjected to ______?

• Light
• Sound
• Vibrations

Photochromic particles react to what form of light?

• Bright Light
• Ultraviolet Light
• Dark Light

Piezoelectric material responds to what?

• Light
• Sound
• Vibrations

Thermochromic material responds to what?

• Heat
• Light
• Sound

How can thermochromic materials be used within the medical industry?

• To show room temperatures
• To be used as a fever strip
• As novelty goods