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WorksheetsModern Materials
Total questions: 15
Worksheet time: 5mins
Name
Class
Date
1.
What is the primary characteristic of a smart material?
a)
It can be used in any application without any limitations
b)
It changes its properties in response to an external stimulus
c)
It is always more expensive than traditional materials
d)
It is naturally occurring and does not require processing
2.
Which of the following is an example of a smart material?
a)
Carbon Fibre
b)
Kevlar
c)
Thermochromic pigments
d)
Concrete
3.
What is the purpose of microencapsulation in modern materials?
a)
To make the material conductive
b)
To enclose substances within a coating for controlled release or protection
c)
To make the material resistant to heat
d)
To increase the strength of the material
4.
Which of the following materials is often used in bulletproof vests due to its high tensile strength?
a)
Carbon Fibre
b)
Kevlar
c)
Glass Reinforced Plastic (GRP)
d)
Thermoplastic Elastomers
5.
Which property of carbon fibre makes it popular in aerospace and automotive industries?
a)
Its low cost
b)
Its high strength-to-weight ratio
c)
Its resistance to fire
d)
Its flexibility
6.
What is the primary function of geotextiles in construction?
a)
To provide insulation
b)
To filter and drain water while reinforcing soil
c)
To enhance the aesthetic appearance of the building
d)
To absorb energy from impact
7.
What is a key feature of Glass Reinforced Plastic (GRP) that makes it suitable for use in automotive and boat manufacturing?
a)
Its ability to conduct electricity
b)
Its lightweight and corrosion-resistant properties
c)
Its high flexibility
d)
Its resistance to UV radiation
8.
What property of thermochromic materials makes them useful in temperature-sensitive applications?
a)
They change shape in response to heat.
b)
They change color in response to temperature.
c)
They release energy when exposed to high temperatures.
d)
They emit light when heated.
9.
What is the main advantage of using composites in manufacturing?
a)
They are always cheaper than metals.
b)
They combine materials with different properties to create an enhanced material.
c)
They are naturally occurring and do not require processing.
d)
They are easier to recycle.
10.
Which material is commonly used in clothing to create fabric that repels water while allowing the skin to breathe?
a)
Kevlar
b)
Gore-Tex
c)
Carbon Fibre
d)
Glass Fibre
11.
Which of the following is a common application of nanomaterials?
a)
Car bodywork
b)
Smartphone screen coatings to repel fingerprints
c)
Thermal insulation in clothing
d)
Bulletproof vests
12.
What is the primary reason for using Kevlar in body armour?
a)
It is lightweight and resistant to fire.
b)
It can conduct electricity to improve communication.
c)
It has high tensile strength and can absorb impact energy.
d)
It is transparent and allows for camouflage.
13.
Which of the following is a characteristic of shape memory alloys (SMAs)?
a)
They change shape when exposed to specific temperatures.
b)
They are highly resistant to UV radiation.
c)
They are used for creating flexible clothing fibers.
d)
They have high electrical conductivity.
14.
Which material is commonly used in the construction of surfboards and boats due to its strength and lightweight properties?
a)
Carbon Fibre
b)
Glass Reinforced Plastic (GRP)
c)
Kevlar
d)
Thermochromic Pigments
15.
What type of material is used in 'smart textiles' to monitor health data such as heart rate or body temperature?
a)
Nanomaterials
b)
Interactive textiles (conductive fibers)
c)
Polymorph
d)
Shape memory alloys
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