Welcome to the Quiz!
This quiz contains 15 questions from a mix of 1 subtopics.
In physics, what is meant by a material's strength?
The resistance of a material to being scratched or indented
The temperature at which a solid changes into a liquid
The resistance of a material to an applied force
The ability of a material to conduct electricity
|
In physics, what is a material's hardness?
The resistance of a material to an applied force
The temperature at which a solid changes into a liquid
The resistance of a material to being scratched or indented
The ability of a material to conduct electricity
|
What does it mean for a material to be brittle?
It is difficult to bend
Electricity can conduct through it easily
It will only boil at very high temperatures
It will snap easily
|
What does it mean for a material to be stiff?
It will snap easily
Electricity can conduct through it easily
It is difficult to bend
It will only boil at very high temperatures
|
Are ceramics soft or hard?
Soft
Hard
|
Which three materials are used to make soda-lime glass?
Limestone
Boron trioxide
Clay
Sand
Sodium carbonate
|
Which two materials are used to make borosilicate glass?
Clay
Sodium carbonate
Sand
Boron trioxide
Limestone
|
Which type of glass has a higher melting point?
Borosilicate glass
Soda-lime glass
|
The two components of a composite material are called the r and the m.
|
Which component of a composite often consists of long solid fibres or fragments?
The matrix
The reinforcement
|
What do we call the individual units that make up a polymer?
|
What does LDPE stand for?
|
Which type of poly(ethene) is most flexible, but weakest?
HDPE: high-density poly(ethene)
LDPE: low-density poly(ethene)
|
Which type of polymers melt easily when heated?
Thermosetting polymers
Thermosoftening polymers
|
What is the key difference between metals and alloys?
Alloys do not have high melting points
Alloys do not conduct electricity
Alloys are not malleable
|