Materials

This is a question and answer based on Materials.

Why are hardwood timbers so called?
Hardwood timbers get their name because of their cell structure
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Where do softwood timbers come from?
Softwood timbers come from coniferous trees which are evergreen, needle-leaved, cone-bearing trees such as fir and pine
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What do ferrous metals contain?
Ferrous metals contain iron
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What do we call a mixture of two or more metals, or elements such as carbon?
A mixture of two or more metals, or elements such as carbon, is called an alloy
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How many times can thermoplastics be heated and shaped?
Thermoplastics can be heated and shaped many times, while thermoset plastics can only be heated and shaped once
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What are composite materials made of?
A composite material is a combination of a reinforcing materials and a suitable bonding agent
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What are smart materials?
Smart materials react to a stimulus, such as temperature or moisture
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Which of the following reacts to changes in light levels?
Photochromic pigments react to changes in light levels
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If a material can permanently deform in all directions without cracking, it is:
If a material can permanently deform in all directions without cracking, it is malleable
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If a material can withstand sudden blows or shocks without breaking, it is:
If a material can withstand sudden blows or shocks without breaking, it is tough
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Other cards in this set

Card 2

Front

Where do softwood timbers come from?

Back

Softwood timbers come from coniferous trees which are evergreen, needle-leaved, cone-bearing trees such as fir and pine

Card 3

Front

What do ferrous metals contain?

Back

Preview of the front of card 3

Card 4

Front

What do we call a mixture of two or more metals, or elements such as carbon?

Back

Preview of the front of card 4

Card 5

Front

How many times can thermoplastics be heated and shaped?

Back

Preview of the front of card 5
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