4292620
Descrição
Quiz por esmeroseleydon, atualizado more than 1 year ago
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Criado por esmeroseleydon
quase 9 anos atrás
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Questão 1
Questão
Are these natural or synthetic materials?
Wood, cotton, wool, silk and leather.
Responda
-
Natural
-
Synthetic
Questão 2
Questão
What are raw materials?
Responda
-
Materials that have to be made naturally.
-
Materials made to make synthetic materials from the Earth's crust.
Questão 3
Questão
What is this the definition of?
How good a material is at resisting a force.
Responda
-
Density
-
Hardness
-
Strength
Questão 4
Questão
What is this the definition of?
How difficult a material is to cut into.
Responda
-
Density
-
Strength
-
Melting point
-
Hardness
Questão 5
Questão
Is this the definition of melting point?
The temperature where a solid turns to a gas.
Responda
- True
- False
Questão 6
Questão
A [blank_start]stiff[blank_end] material is good at not [blank_start]bending[blank_end] when a force is applied to it. A bendy material can still be [blank_start]strong[blank_end] as long as the force does not [blank_start]permanently[blank_end] deform it.
Responda
-
stiff
-
bending
-
strong
-
permanently
Questão 7
Questão
Density is…
Responda
-
Mass per unit volume (g/cm3)
-
Joules per unit volume
Questão 8
Questão
Plastics are…
Responda
-
Fairly strong, hard and stiff. They are fairly low density. Some are mouldable.
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Strong, flexible and mouldable.
-
Soft and flexible. They have good tensile strength.
Questão 9
Questão
Crude oil is…
Responda
-
A mixture of hydrocarbons.
-
A mixture of carbon dioxide and hydrogen.
Questão 10
Questão
Are these uses of crude oil?
Petrol, diesel and lubricating oil.
Responda
- True
- False
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