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An atom contains electrons, neutrons and protons - Edexcel - GCSE Physics - Question 6 - 2013 - Paper 1
Question 6
An atom contains electrons, neutrons and protons. (a) Use words from the box to complete the sentences. The charge on an electron is ____________. An electron has... show full transcript
Worked Solution & Example Answer:An atom contains electrons, neutrons and protons - Edexcel - GCSE Physics - Question 6 - 2013 - Paper 1
Step 3
Explain why it is dangerous not to earth the pipe.
Answer
If the pipe is not earthed, static electricity can build up due to friction between the petrol and the inside of the pipe. This static charge can lead to a spark, which has the potential to ignite the petrol, causing a fire or explosion.
Step 4
Explain how earthing the pipe makes this process much safer.
Answer
Earthing the pipe removes excess charge, neutralizing any static electricity that may have built up. This prevents the risk of a spark, thereby significantly reducing the chances of fire or explosion during the transfer of petrol.