Lesson 3.1.3
3.1.3 Developments in new materials Quiz: AQA Design & Technology, Unit 1
20 questions
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Lesson 3.1.3, Developments in new materials: 20 multiple choice questions for the AQA GCSE Design & Technology (8552), Unit 1: Core technical principles, written with Revision Ninja.
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The 20 questions
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How is graphene structurally defined?
- Double polymer sheet
- Woven metal wire
- Single carbon layer
- Solid carbon block
-
Which example is a smart material that changes shape when heated?
- Shape memory alloy
- Glass reinforced plastic
- Metal foam
- Kevlar
-
Thermochromic pigments respond to which external stimulus?
- Moisture
- pH
- Stress
- Temperature
-
Photochromic pigments change when exposed to which stimulus?
- Temperature
- Light
- Moisture
- Stress
-
GRP stands for which material?
- Gel reinforced plastic
- Graded resin polymer
- Glass resistant polymer
- Glass reinforced plastic
-
How are composite materials produced?
- Extruding solid plastics
- Weaving plant fibres
- Combining different materials
- Melting pure metals
-
Which is NOT an external stimulus listed for smart materials?
- Moisture
- pH
- Stress
- Sound
-
What defines a smart material in product design?
- Made from crude oil
- Contains embedded microcontrollers
- Responds to external stimuli
- Composed of two fibres
-
A designer needs a fabric that carries an electrical signal for wearable sensors. Which technical textile is most suitable?
- Felted wool
- Fire resistant fabrics
- Conductive fabrics
- Woven cotton
-
A jacket must resist cuts. Which technical textile from the specification is best known for this?
- Silk
- Kevlar
- Polyester
- Elastane
-
A cup label changes colour when a drink becomes hot. Which material type is the label most likely using?
- Shape memory alloy
- Graphene
- Photochromic pigments
- Thermochromic pigments
-
Sunglass lenses darken automatically when they are exposed to sunlight. Which material type is this?
- Liquid crystal display
- Thermochromic pigments
- Metal foam
- Photochromic pigments
-
Which composite material is best for high strength and low weight in bike frames?
- Glass reinforced plastic
- Carbonfibre reinforced plastic
- Compressed plywood
- Corrugated cardboard
-
A designer wants a material that returns to its original shape after being heated. Which smart material is suitable?
- Nanomaterial
- Shape memory alloy
- Photochromic pigment
- Glass reinforced plastic
-
Which technical textile feature slowly releases a sealed active agent over time?
- Micro-encapsulation
- Smart weaving
- Nanometre coating
- Thermal bonding
-
A test strip changes colour in acidic liquids. Which smart material stimulus is this?
- Ambient pressure
- Electrical voltage
- Applied stress
- pH level
-
Which four external stimuli are associated with smart materials in the specification?
- Light, sound, pressure, voltage
- Force, velocity, friction, mass
- Stress, temperature, moisture, pH
- Carbon, heat, humidity, acid
-
A nanomaterial feature measures 50 nanometres. What is this length in metres?
- 5 x 10^-7 m
- 5 x 10^-8 m
- 5 x 10^-9 m
- 5 x 10^-6 m
-
Why are coated metals classified as material alterations rather than new processes?
- Entirely new alloy
- Chemical extraction
- Pure polymer coating
- Base metal retained
-
CRP stands for which material?
- Cellular resin plastic
- Crystal reinforced polymer
- Carbonfibre reinforced plastic
- Carbon resistant polymer
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