Alternative to Practical: show readings, units and working. For a plotted graph or diagram, upload a clear image of your work on the supplied figure.
(a)Read question and case materials as text
Text can be resized with your browser. Refer to the original figures below for diagrams and their layout.
Fig. 1.1 shows a water drop from a pipette makes a wavefront on a plate of water. It travels from the centre to the rim and reflects to the centre.
Fig. 1.2 shows a pipette scale. Describe how to put 1.0 cm³ of water into the dropping pipette.
Fig. 1.1 shows a water drop from a pipette makes a wavefront on a plate of water. It travels from the centre to the rim and reflects to the centre.
Fig. 1.1Fig. 1.2
Fig. 1.2 shows a pipette scale. Describe how to put 1.0 cm³ of water into the dropping pipette.
Answer guidance
Describe Say what happens, in order. Reasons are not required unless the question also asks why.
[3 marks]
(b)(i)Read question and case materials as text
Text can be resized with your browser. Refer to the original figures below for diagrams and their layout.
Fig. 1.1 shows a water drop from a pipette makes a wavefront on a plate of water. It travels from the centre to the rim and reflects to the centre.
Fig. 1.3 shows the plate diameter; Fig. 1.4 gives stopwatch readings 1.12 s, 1.17 s and 1.02 s for a wavefront going from the plate centre to the rim and back. Determine an accurate time t; show working and suitable significant figures.
Fig. 1.3 shows the plate diameter; Fig. 1.4 gives stopwatch readings 1.12 s, 1.17 s and 1.02 s for a wavefront going from the plate centre to the rim and back. Determine an accurate time t; show working and suitable significant figures.
Fig. 1.3Fig. 1.4
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)
Fig. 1.3 is a side view of the plate, drawn to scale 1:2. Measure its diameter D on the printed figure, use your time t from (b)(i), and calculate the wavefront speed in cm/s. Show the measured distance and working.
Measurement: this scale drawing is taken from the printed paper. On a small screen or when zoomed, use the enlarged source figure and account for display scaling.
Answer guidance
Show The result is given, so every step of the reasoning is what earns the marks.
[2 marks]
(c)(i)
Identify two causes of uncertainty in this experiment.
Answer guidance
Identify Name it and, where the marks allow, say what led you there.
[2 marks]
(c)(ii)
Suggest one improvement to this experiment.
Answer guidance
Suggest More than one answer may be acceptable, so long as it is consistent with the physics.
[1 mark]
5054/41/O/N/23Cambridge O Level Physics 5054 · Oct/Nov 2023 · Paper 4 variant 1 · Question 1