The newest 5 of 5 written questions. Open one to see it on the real paper.
Complete the definition of potential difference (p.d.). Potential difference (p.d.) is the work done by a unit moving between
See it on the paper →Complete the sentence to define electromotive force (e.m.f.). Electromotive force is the electrical done by a source in
See it on the paper →Fig. 3.2 shows the voltmeter readings V 1 and V 2 . Read and record V 1 and V 2 to the nearest 0.01 V. 0.2 0.6 0.4 0.8 0.2 1.0 0 0.6 0.4 0.8 1.0 0 V V V 1 V 2 Fig. 3.2 V 1 = V ĬÑĊ®Ġ´íÈõÏĪÅĊàù¸þ× V 2 = V
See it on the paper →A student suggests that if resistor 1 has the same resistance as resistor 2 then V 1 = V 2 . Two values are considered equal within the limits of experimental accuracy if they are within 10% of each other. State if your values of V 1 and V 2 support the student’s suggestion. Justify your answer with a calculation.
See it on the paper →State the electromotive force (e.m.f.) of the battery. e.m.f. =
See it on the paper →Some candidates correctly identified work and/or charge, and at least partial credit was often awarded. Of the large number of incorrect suggestions for both parts, the most popular for work included energy, current and power. The most popular suggestions for charge included coulomb, volts and electrons.
— Examiner report, May/June 2025, 0653/41 Q9(b)(ii) (Cambridge)
The question asked for the results to be recorded to the nearest 0.01 V. Most candidates correctly recorded the first voltage as 0.65 V, but many recorded the second as 0.7 V, rather than 0.70 V.
— Examiner report, May/June 2025, 0653/62 Q3(b) (Cambridge)
There were a range of alternative options for allowable calculations, such as finding the difference between the two readings and calculating this as a percentage of one or other of the readings or dividing one reading by another and comparing this with 90% and 110%. Candidates were only awarded full credit if they had a correct calculation as it is not possible to say whether the readings are wit...
— Examiner report, May/June 2025, 0653/62 Q3(c) (Cambridge)
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