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Alloys As Useful Materials (chemistry Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Alloys As Useful Materials (chemistry Only)' from the broader topic Using Resources. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Galvanizing is a method to protect iron or steel from rusting. What does galvanizing involve?
Why does adding zinc to copper to make brass change the colour compared with pure copper?
A manufacturer wants to reduce cost while keeping electrical conductivity high for power transmission lines. Which material is commonly used as a compromise because it is lighter and cheaper than copper but still conducts well?
Why are many precision machine parts made from alloys containing small amounts of other elements rather than from pure metals?
Which of the following is a key environmental benefit of recycling metal alloys rather than extracting new metal from ore?
Why might a manufacturer choose a copper-beryllium alloy (a costly engineered alloy) for precision springs rather than a cheaper steel?
Why are alloys generally used in place of pure metals for tools such as hammers and chisels?
Why does adding a small amount of carbon to iron (to make steel) increase the hardness of the metal?
When designing an alloy for high-temperature turbine blades, which property is most critical?
A metal alloy used for electrical contacts must have good conductivity and resistance to wear. Which approach is often used?
Which alloy property is most important for making springs?