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WorksheetsClassification of Materials
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which material is a better conductor of electricity?
a)
Metals
b)
Ceramics
c)
Polymers
d)
I don't know
2.
Semiconductors have structures similar to
a)
Metals
b)
Ceramics
c)
Polymers
d)
I don't know
3.
Which material is more brittle?
a)
Metals
b)
Ceramics
c)
Polymers
d)
I don't know
4.
Which material tends to present lower density?
a)
Metals
b)
Ceramics
c)
Polymers
d)
I don't know
5.
Glasses do not have a crystalline structure, but they belong to the____ group because they share similar properties
a)
Metals
b)
Ceramics
c)
Polymers
d)
I don't know
6.
We combine two materials to form a ______
a)
Semiconductor
b)
Nanomaterial
c)
Composite
d)
I don't know
7.
Semiconductors appear as a separate category because:
a)
They
present intermediate electronic properties
b)
They present a different primary bonding
c)
They
are composed of rare elements
d)
I don't know
8.
We refer to nanomaterials when the dimensions are:
a)
millimetres
b)
femtometres
c)
nanometres
d)
I don't know
9.
Nanomaterials are interesting because:
a)
They
are tiny and cute
b)
They
can fit into smaller spaces
c)
Their
properties depend on size
d)
I
don’t know
10.
Some natural polymers are
a)
There
are no natural polymers
b)
Cellulose and natural rubber
c)
Polyethylene
and polyvinyl chloride
d)
I don't know
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