C2.6 - Synthetic and Natural Polymers (Separates only) Knowledge Test
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1) How can corrosion be described?
2) How can corrosion be prevented?
3) What practical could be carried out to investigate the conditions needed for corrosion (rusting)?
4) What conditions are needed for corrosion to occur?
5) What does sacrificial protection mean?
6) How is aluminium protected from further corrosion?
7) Would a more or less reactive metal be used in sacrificial protection? Give a reason for your answer.
8) Are most everyday metals pure or alloys?
9) What are the alloys bronze and brass made up of?
10) What is the percentage of gold in 24 carat and 18 carat gold used for jewellery?
11) What elements are present in the alloy steel?
12) How are the physical properties of high carbon and low carbon steels different?
13) What are the benefits of stainless steels that contain chromium and nickel?
14) What are the uses of low density aluminium alloys?
15) What are the uses of high density steels?
16) How is soda-glass made?
17) How is borosilicate glass made and what is the advantage of it over soda-glass?
18) How are clay ceramics made?
19) What is a composite and how are they made?
20) What are three examples of composites?
21) What is a polymer?
22) What factors determine the type of polymers that are made?
23) What is the difference between thermo softening and thermosetting polymers?
24) How are high density and low density poly(ethene) are produced from ethene?
25) How are the structures of thermosoftening and thermosetting polymers different?
26) How do the Big Ideas link to this topic?