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.
Removed from current syllabusKept here for past-paper practice.
(a)(i)Fig. 10.1 shows a historical cathode-ray oscilloscope. Name its parts B, D, E and F.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[3 marks]
Removed from current syllabusKept here for past-paper practice.
(a)(ii)1Using Fig. 10.1, state the purpose of part B in the cathode-ray oscilloscope.
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[1 mark]
Removed from current syllabusKept here for past-paper practice.
(a)(ii)2Using Fig. 10.1, state the purpose of part D in the cathode-ray oscilloscope.
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[1 mark]
Removed from current syllabusKept here for past-paper practice.
(a)(iii)In the cathode-ray oscilloscope of Fig. 10.1, state the useful energy change when electrons strike its screen.
[1 mark]
Removed from current syllabusKept here for past-paper practice.
(a)(iv)In Fig. 10.1, describe what happens inside the cathode-ray oscilloscope to turn its bright spot into a horizontal line.
[2 marks]
(b)(i)1Fig. 10.2 shows a sound-wave trace on a c.r.o. set to Y-gain 0.5 V per division and time base 2.0 ms per division. Determine the maximum voltage.
Answer guidance
Determine Work it out from what you are given or from the figure, and show how you got there.
[1 mark]
(b)(i)2Fig. 10.2 shows a sound-wave trace on a c.r.o. set to Y-gain 0.5 V per division and time base 2.0 ms per division. Determine the time for one oscillation.
Answer guidance
Determine Work it out from what you are given or from the figure, and show how you got there.
[2 marks]
(b)(i)3Fig. 10.2 shows a sound-wave trace on a c.r.o. set to Y-gain 0.5 V per division and time base 2.0 ms per division. Determine the sound frequency.
Answer guidance
Determine Work it out from what you are given or from the figure, and show how you got there.
[2 marks]
(b)(ii)Using Fig. 10.2 with the same c.r.o. settings, sketch a trace for a sound wave of smaller amplitude and lower frequency.
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[2 marks]
5054/22/M/J/16Cambridge O Level Physics 5054 · May/June 2016 · Paper 2 variant 2 · Question 10