4292620
Descripción
Test por esmeroseleydon, actualizado hace más de 1 año
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Creado por esmeroseleydon
hace más de 8 años
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Pregunta 1
Pregunta
Are these natural or synthetic materials?
Wood, cotton, wool, silk and leather.
Respuesta
-
Natural
-
Synthetic
Pregunta 2
Pregunta
What are raw materials?
Respuesta
-
Materials that have to be made naturally.
-
Materials made to make synthetic materials from the Earth's crust.
Pregunta 3
Pregunta
What is this the definition of?
How good a material is at resisting a force.
Respuesta
-
Density
-
Hardness
-
Strength
Pregunta 4
Pregunta
What is this the definition of?
How difficult a material is to cut into.
Respuesta
-
Density
-
Strength
-
Melting point
-
Hardness
Pregunta 5
Pregunta
Is this the definition of melting point?
The temperature where a solid turns to a gas.
Respuesta
- True
- False
Pregunta 6
Pregunta
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.
Respuesta
-
stiff
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bending
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strong
-
permanently
Pregunta 7
Pregunta
Density is…
Respuesta
-
Mass per unit volume (g/cm3)
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Joules per unit volume
Pregunta 8
Pregunta
Plastics are…
Respuesta
-
Fairly strong, hard and stiff. They are fairly low density. Some are mouldable.
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Strong, flexible and mouldable.
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Soft and flexible. They have good tensile strength.
Pregunta 9
Pregunta
Crude oil is…
Respuesta
-
A mixture of hydrocarbons.
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A mixture of carbon dioxide and hydrogen.
Pregunta 10
Pregunta
Are these uses of crude oil?
Petrol, diesel and lubricating oil.
Respuesta
- True
- False
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