Available practice: 73 of 75 marks. Parts 7(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)Complete Fig. 5.1 for sound and water-surface waves: give each wave’s vibration direction relative to energy transfer and identify its wave type.
Answer guidance
Complete Fill in every gap. A partly completed answer usually scores partly.
[2 marks]
(b)(i)A wave travels along a rope. Fig. 5.2 shows how the height of one point on the rope varies with time as the wave passes. Determine the amplitude of the vibration at time = 0.25 s.
Answer guidance
Determine Work it out from what you are given or from the figure, and show how you got there.
[1 mark]
(b)(ii)A wave travels along a rope. Fig. 5.2 shows how the height of one point on the rope varies with time as the wave passes. Describe how the graph shows that the frequency of the wave is constant.
Answer guidance
Describe Say what happens, in order. Reasons are not required unless the question also asks why.
[1 mark]
5054/21/M/J/16Cambridge O Level Physics 5054 · May/June 2016 · Paper 2 variant 1 · Question 5