Available practice: 71 of 75 marks. Parts 5(a)(ii), 5(b)(i), 11(a) await marking support. Scores cover available parts only. Theory Paper 2: Section A is compulsory and Section B offers a choice of two questions. Four published mark-scheme discrepancies across the two variants are held from automatic marking.
(a)An uncharged piece of metal P rests on an insulator. A positively charged rod is placed close to P, as shown in Fig. 7.1. State a material that is an electrical insulator.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[1 mark]
(b)An uncharged piece of metal P rests on an insulator. A positively charged rod is placed close to P, as shown in Fig. 7.1. On Fig. 7.1, draw the distribution of charges on P.
[2 marks]
(c)(i)An uncharged piece of metal P rests on an insulator. A positively charged rod is placed close to P, as shown in Fig. 7.1. P is then connected to earth by a wire, as shown in Fig. 7.2. On Fig. 7.2, show the distribution of charges on P with the earth wire connected.
[1 mark]
(c)(ii)1In Fig. 7.2, the positively charged rod is removed while the earth wire remains connected to metal P. State what happens to the charges on P.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[1 mark]
(c)(ii)2In Fig. 7.2, the earth wire is disconnected from metal P before the positively charged rod is removed. State what happens to the charges on P.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[1 mark]
5054/22/M/J/16Cambridge O Level Physics 5054 · May/June 2016 · Paper 2 variant 2 · Question 7