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Homework week 1

Total questions: 49

Worksheet time: 25mins

Name
Class
Date
1.

What is the definition of a material ‘property’?

a)

Who owns the material

b)

Where the material comes from

c)

Anything that describes the material

d)

What the material can be used for

2.
The ability of a material to withstand a force without breaking or bending
a)
durability
b)
hardness
c)
toughness
d)
strength
3.
The ability of a material to withstand wear, especially as a result of weathering
a)
durability
b)
hardness
c)
toughness
d)
strength
4.
The ability of a material to conduct heat or electrical energy
a)
conductivity
b)
ductility
c)
malleability
d)
fusibility
5.
The ability of a material to change into a liquid or molten state when heated to its melting point
a)
conductivity
b)
ductility
c)
malleability
d)
fusibility
6.
The ability of a material to deform, usually by stretching along its length
a)
plasticity
b)
ductility
c)
malleability
d)
elasticity
7.
The ability of a material to permanently deform in all directions without cracking
a)
plasticity
b)
ductility
c)
malleability
d)
elasticity
8.

What is a brittle material?

a)

Change their shape when under a load, but return to their original shape when the load is removed.

b)

Change their shape when under a load, but they remain permanently deformed when the load is removed.

c)

Break or crumble rather than deform under a load.

d)

Can easily be shaped by hammering or rolling, and they keep their new shape. Some materials can be made more malleable by heating.

9.

What is a malleable material?

a)

Can easily be shaped by hammering or rolling, and they keep their new shape. Some materials can be made more malleable by heating.

b)

Change their shape when under a load, but they remain permanently deformed when the load is removed.

c)

Change their shape when under a load, but return to their original shape when the load is removed.

d)

Break or crumble rather than deform under a load.

10.

A brick is______

a)

Plastic

b)

Malleable

c)

Brittle

d)

Elastic

11.

What is the lustre of a material?

a)

The refractive index of the material.

b)

The ability of a material to form thin sheets.

c)

How the light interacts with the surface of the material.

d)

The absorption properties of a material.

13.
A mixture of two or more metals is called:
a)
mixture
b)
solution
c)
compound
d)
alloy
13.
A mixture of two or more metals is called:
a)
mixture
b)
solution
c)
compound
d)
alloy
14.
Which fibre is sustainable?
a)
Nylon
b)
Polyester
c)
Cotton
d)
Acetate
15.
Sustainable farming means?
a)
Growing crops each year.
b)
Growing crops without chemicals and without damaging the environment.
c)
Using lots of chemicals to get the biggest crops.
16.
How can you stop water pollution?
a)
Have a sieve to collect pollution.
b)
Use dyes that are safe (biodegradable).
c)
Only dye with light colours.
17.
Cotton is sustainable but which one is environmentally friendly?
a)
Conventionally grown Cotton.
b)
Organic cotton.
18.
How can we use less of our resources?
a)
Recycle textiles instead of throwing them into landfills.
b)
Stop buying fabrics.
19.
We can limit water pollution by?
a)
Using fibres that don't need dyeing.
b)
Stop using so much water
20.
The Eco label means that?
a)
The product is available in Europe.
b)
The fibre is grown in Europe.
c)
The product has no harmful chemicals in it.
21.
Fleece is made from?
a)
Recycled plastic bottles
b)
The fleece from a sheep
22.
A products carbon footprint can be reduced by?
a)
By not using carbon in the product.
b)
By using local resources and limiting CO2 gases.
23.
Non renewable fibres are?
a)
Ones that you cannot recycle.
b)
Made from fossil fuels.
24.
The 6 R's are?
a)
Rules for making products.
b)
Methods used to create a sustainable future.
25.
You can only recycle natural fibres.  True or false?
a)
False
b)
True
26.
Pinatex is a sustainable fibre made from?
a)
Pine trees
b)
Pineapple leaves
27.
Renewable energy sources are?
a)
Gas, oil and coal.
b)
Solar, tidal, wind power.
28.
Nylon and Polyester are endlessly recyclable.  True or false?
a)
True
b)
False
29.
Plastic bottles can be recycled to make?
a)
New plastic bottles
b)
They cannot be recycled
c)
Fleece fabric
30.

Which material are hard woods?

a)

Beech

b)

Pine

c)

Chipboard

d)

Mahogany

31.

softwoods are soft and hardwoods are hard.

a)

True

b)

False

32.

Which material is absorbent?

a)

Wool

b)

Polyester

c)

Acrylic

33.

Which material is crease resistant?

a)

Cotton

b)

Linen

c)

Acrylic

34.
If a material wears away slowly by a chemical reaction, it is said to ___.
a)
polymerize
b)
synthesize
c)
corrode
d)
degrade
35.
A material that is sensitive to temperature 
a)
leuco dyes 
b)
Thermocromic
36.
A material that is sensetive to light 
a)
Photochromic 
b)
Thermochromic 
37.
These materials react and change with a physical change in their environment e.g. heat, light, electrical current.
a)
Smart Materials
b)
Modern materials
c)
Nano materials
d)
New Materials
38.
Pigments react to changes in temperature
a)
Thermochromic
b)
Photochromic 
39.
I am a smart material that is easily bent when cool but jump back into shape when heated above a certain temperature eg. nitinol
a)
Shape memory Alloys
b)
Nano Materials
c)
Ceramics
d)
Cornstarch polymers
40.
These materials react and change with a physical change in their environment e.g. heat, light, electrical current.
a)
Smart Materials
b)
Modern materials
c)
Nano materials
d)
New Materials
41.
Materials that use small particles to give them cool properties:
-they have medical uses(antibacterial fabrics)
-Self cleaning fabrics
a)
Smart Materials
b)
Nano materials
c)
Modern Materials
d)
Super alloys
42.
Amazing strength to weight ratio and is easily moulded/shaped. Resistant to corrosion, rigid/stiff and quite expensive.
a)
Kevlar
b)
Carbon fibre
c)
GRP
d)
Tungsten
43.

Shape-memory alloys are ...

a)

plastics that spring back to original shape.

b)

polymers that spring back to original shape.

c)

metals that spring back to original shape.

d)

plastics that don't change shape.

44.

A Composite material is a material that is ...

a)

made from a variety of metals.

b)

made from polymers and adhesives.

c)

made with a reinforcing material and metal.

d)

made with a reinforcing material and a bonding agent.

45.

Carbon Fibre is an example of a composite material. Which statement is correct?

a)

It is made using carbon fibre fabric and set with polyester resin; it has great strength; used in body armour.

b)

It is made using carbon fibre fabric and set with polyvinyl acetate; it has great strength; used in body armour.

c)

It is made using carbon fibre fabric and set with concrete; it has great strength; used in body armour.

d)

It is made using carbon fibre fabric and set with polyester resin; it has poor strength; used in body armour.

46.

Which 2 of the following technologies are currently made using nanotechology?

a)

odor-free socks

b)

vegetarian meatballs

c)

vaccinations

d)

wrinkle-resistant fabrics

47.
They change colour depending on the amount of light hitting the surface. By far the most common use of this is in light-sensitive glasses, such as sunglasses.
a)
Reflective Films
b)
Phosphorescent pigments
c)
Holograms
d)
Photochromic Materials
48.
Respond to changes in temperature by changing colour, t-shirts, mugs and temperature strips
a)
Nanomaterials
b)
Thermochromic materials
c)
Integrated electronics
d)
Thermochronic Materials
49.
Glow in the dark, absorbs light during the day and emits it when dark E.G Fire exit signs
a)
Photochromic Materials
b)
Thermochromic Materials
c)
Phosphorescent pigments
d)
Holograms

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