Material Choices

Key words from module 2

Teacher recommended

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Material
The polymers,metals,glasses and ceramics that we use to make objects out of.
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Properties
The physicals or chemical characteristics of a chemical. The properties are what make it different to othermaterials
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Polymer
A material made of very long molecules formed by joining lots of smaller molecules together
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Natural
A material which occurs naturally but may need processing eg silk
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Synthetic
A material which is made by chemical process, not naturally occuring
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Ceramic
A solid materialsuch as pottery or glass.cement and brick
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Metal
The element on left of the periodic table. They are shiny, conduct electricity react with acid to form salts and hydrogen.
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Mixture
Two or more chemicals which are not chemically joined.
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Flexible
A material which will bend easily without breaking
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Rubber
A naturally derived polymer
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Strong
A material that is hard to pull apart or crush
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Tension
A material in tension is able to withstand forces pulling it apart
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Compression
A material in compression has forces which are trying to push it together and make it smaller
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Stiff
A material which is difficult to bend.
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Hard
A material which is difficult to dent or scratch.
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Soft
A material which is easy to dent or scratch.
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Accuracy
How close a quantative value is to the true / actual value.
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Fibre
Long thin threads which make up material such wool and polyester used for textiles
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Repeatable
A quality of measurment that gives the same reult when repeated under the same conditions.
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Reproducible
A quality of a measurement that gives the same results when carried out by different people or with different methods or equipment
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Macroscopic
Large enough to be seen without a microscope.
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Nanometre(nm)
A unit of length 1 000 000 000 times smaller than a metre.
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Monomer
A smaller molecule that can be joined to others like it in a long chain to make a polymer.
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Polymerise
The joining together of lots of small molecules called monomers to form long chained polymers.
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Vulcanisation
A process for hardening naturally occuring rubber by making cross links
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Cross links
A link or bond joining chains together.
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Durable
A material is durable if it is long lasting and does not wear out.
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Plasticiser
A chemical usually a small molecule added to a polymer to make it more flexible.
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Crystalline
A polymer which lines up in a regular way as in a crystal.
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Melting point
The temperature at which a solid will break chemical bonds and turn into a liquid
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Crude oil
A dark oily liquid found in the Earth , which is a mixture of hydrocarbons
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Hydrocarbon
A compound which consists of carbon and hydrogen only chemically joined.
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Fraction
A mixture of hydrocarbons with a simillar boiling points that have been separated by fractional distillation
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Fractional Distillation
A method of separating a misture into groups with similar boiling points.
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Chemical Synthesis
Making a new chemical by joining together a more simple chemical
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Nanotechnology
The control of matter on a tiny scale.
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Nanoparticle
A very tiny particle, whose scale can be measured in nanometres
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Other cards in this set

Card 2

Front

The physicals or chemical characteristics of a chemical. The properties are what make it different to othermaterials

Back

Properties

Card 3

Front

A material made of very long molecules formed by joining lots of smaller molecules together

Back

Preview of the back of card 3

Card 4

Front

A material which occurs naturally but may need processing eg silk

Back

Preview of the back of card 4

Card 5

Front

A material which is made by chemical process, not naturally occuring

Back

Preview of the back of card 5
View more cards

Comments

lisa linsdell

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A good revision aid for all the key words in the module. check understanding of all the key words that might come up in any exam on this topic

DEENO008

Report

this is alright to learn from

still needs a bit more information thou

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