WorksheetsSmart and Modern Materials Quiz
Total questions: 34
Worksheet time: 33mins
What is the missing word? Smart materials are 'reactive materials'. Their properties can be changed by exposure to -------, such as electric and magnetic fields, stress, moisture and temperature.
(a)
Fill in the missing word: Modern materials are developed through the invention of new or improved processes to improve the (a) of the material, eg to make them stronger, faster, lighter and tougher.
Photochromic
Thermochromic
Electroluminescent
Quantum Tunelling
Shape Memory Alloy
Graphene
Kevlar
Nomex
Fibreglass
Carbon Fibre
What bulletproof material is pictured here?
Nomex
Kevlar
Teflon
Gortex
Electroluminescence (EL) is when a material emits light in response to the passage of what?
Heat
Sound waves
Electric Current
Magnetic fields
Electroluminescent wire (EL wire) is a thin copper wire coated in a phosphor which does what when an alternating current is applied to it.
Glows
Emits sound waves
Generates heat
Produces magnetic fields
What type of materials are Smart Fibres and Fabrics?
Conventional materials
Inert materials
Modern materials
Reactive materials
A shape-memory alloy (SMA) is an alloy that "remembers" its original (a) and when deformed returns to its pre-deformed shape when (b) .
What property of Shape Memory Alloys (SMAs) allows them to return to their original shape when heated?
Thermoconductivity
Superelasticity
Flexibility
Magnetism
Nitinol (NiTi) is a shape memory alloy. What elements are present in nitinol?
Nickel and titanium
Nickel and tin
Nitrogen and tin
Select the correct examples of Shape Memory Alloys (SMA) below.
What are Quantum Tunnelling Composites (QTCs) primarily used for?
Generating electricity
Controlling seismic vibrations
Sensing pressure
Emitting light
How do Electroluminescent panels work?
They emit light in response to mechanical energy
They emit light when exposed to magnetic fields
They emit light when a current is applied
They emit light when heated
What is the primary function of Liquid Crystal Displays (LCDs)?
Emitting light
Sensing pressure
Producing sound
Displaying images
What material is pictured here?
(a)
Polymorph is a (a) material that can be shaped and reshaped any number of times. It is normally supplied as granules that look like small plastic beads.
When heated to (b) the granules soften form a mass of ‘clear’ material, pliable material.
Select the correct uses for polymorph.
Insulation in electrical wiring
Prototype mechanical parts
Structural material
Joining components together
Manufacturing awkward shapes such as ergonomic handles
What makes Polymorph suitable for 3D modeling?
It can be shaped by hand or pressed into molds
It is biodegradable
It is resistant to high temperatures
It has a long shelf life
Which smart material is being used in the image displayed.
Thermochromic
Photochromic
Hydrochromic
What are the disadvantages of using a thermochromic forehead thermometer?
Limited accuracy in temperature readings
High cost of production
Limited durability and lifespan
Requires frequent calibration
Match the following
Thermochromic Film
Thermochromic Ink
Thermochromic Plastic
Which smart material would you find in the lenses of glasses that darken in bright sunlight?
Photochromic pigment
Shape memory alloy
Thermochromic pigment
Hydrochromic pigment
Match the following reaction to their stimulus.
Thermochromic
Changes color with temperature
Photochromic
Changes color with light/ UV
Hydrochromic
Changes color when in contact with water
Phosphorescent
Glows after contact with light
Electroluminescent
Produces light through electrical energy
Select 2 purposes of Geotextiles in construction?
Insulation
Filtration
Decoration
Soundproofing
Retaining earth
Composite materials are made up of (a) materials which are (b) to improve their properties.
Which material exhibits high strength and lightness, and is used in Formula 1 car bodies and aerospace technology?
Fibreglass
Nomex
Carbon Fibre
Graphene
Which material is composed of a single layer of carbon atoms and is the strongest and lightest material ever tested?
Fibreglass
Nomex
Carbon Fibre
Graphene
Graphene offers (a) resistance to the flow of electricity, unlike copper, which is regarded as a very good (b) , but its resistance leads to a loss of efficiency
What characteristic of Rhovyl textiles makes them suitable for sports wear?
Antibacterial protection
UV resistance
Thermal insulation
Chemical resistance
Which modern material is a suitable for the making the following:
Boats, cars, baths, hot tubs, surfboards, water tanks, roofing, pipes, cladding etc.
(a)
What composite modern material is created glass fibres and resin.
(a)
Which of the below are commonly created using carbon fibre? (Multiple answers)
Match the following composite material to their pictures.
Kevlar
Nomex
Fibreglass
MDF
Carbon Fibre
