Electrical safety past paper questions

O Level Physics 5054 · Practical electricity. 1 State the hazards of: (a) damaged insulation (b) overheating cables (c) damp conditions (d) excess current from overloading of plugs, extension leads, single and multiple sockets when using a mains supply 2 Explain the use and operation of trip switches and fuses and choose appropriate fuse ratings and trip switch settings 3 Explain what happens when a live wire touches a metal case that is earthed 4 Explain why the outer casing of an electrical appliance must be either non-conducting (double- insulated) or earthed 5 Know that a mains circuit consists of a live wire (line wire), a neutral wire and an earth wire and explain why a switch must be connected into the live wire for the circuit to be switched off safely 6 Explain why fuses and circuit breakers are connected into the live wire

In Cambridge O Level Physics 5054, Electrical safety came up in 18 of the 72 papers on Paperstreak, for about 3 marks a paper when it does. It last came up in October/November 2025.

Often set with Uses of electricity, Series and parallel circuits.

19 questions, newest first

5054/11/O/N/25 Question 34 · 1 mark
5054/22/O/N/25 Question 7 parts (a(ii)) (b(i)) (b(ii)) · 5 marks
5054/22/M/J/25 Question 6 parts (a) (b) (d) · 6 marks
5054/11/O/N/24 Question 35 · 1 mark
5054/12/M/J/24 Question 32 · 1 mark
5054/12/M/J/24 Question 33 · 1 mark
5054/21/M/J/24 Question 5 parts (d(i)) (d(ii)) (d(iii)) · 4 marks
5054/11/O/N/23 Question 28 · 1 mark
5054/21/M/J/23 Question 8 parts (c(i)) (c(ii)) · 4 marks
5054/11/O/N/22 Question 32 · 1 mark
5054/12/O/N/22 Question 34 · 1 mark
5054/11/M/J/22 Question 35 · 1 mark
5054/12/M/J/22 Question 37 · 1 mark
5054/22/O/N/21 Question 4 · 7 marks
5054/11/M/J/21 Question 31 · 1 mark
5054/12/M/J/21 Question 36 · 1 mark
5054/22/O/N/20 Question 5 · 7 marks
5054/11/M/J/20 Question 40 · 1 mark
5054/22/M/J/20 Question 6 part (a) · 2 marks

More in Practical electricity: Uses of electricity.

Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.