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Metals As Conductors (GCSE Chemistry)
The following is a GCSE Chemistry test covering 'Metals As Conductors' from the broader topic Bonding, Structure, And The Properties Of Matter. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Question 1
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What is meant by the phrase "delocalised electrons" in a metal?
What is the best description of an electrical conductor?
Why is silver not used widely for large-scale power cables even though it is the best conductor?
Which explanation correctly describes why metals in a wire heat up when a large current flows?
Which statement best explains why pure copper is preferred over pure aluminium for many household electrical wires?
When a metal wire is heated, what happens to its ability to conduct electricity (for most pure metals)?
Why are many electrical wires coated in an insulating material even though the metal is a good conductor?
Why are metals often good thermal conductors as well as electrical conductors?
Why is gold sometimes used for electrical connectors in electronics despite being expensive?
In a metal lattice model, what do the positive ions represent?
What is the main reason copper wires are often tinned (coated with a thin layer of tin) for connections?
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