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)(i)Read question and case materials as text
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A student investigates a falling mass. Fig. 3.1 shows two mass hangers joined over a pulley; hanger A falls a measured height h to the floor.
Fig. 3.2 shows the top of a metre rule beside hanger A. Use it to record height h of the hanger bottom above the floor, in cm.
A student investigates a falling mass. Fig. 3.1 shows two mass hangers joined over a pulley; hanger A falls a measured height h to the floor.
Fig. 3.1Fig. 3.2
Fig. 3.2 shows the top of a metre rule beside hanger A. Use it to record height h of the hanger bottom above the floor, in cm.
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[1 mark]
(a)(ii)Read question and case materials as text
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A student investigates a falling mass. Fig. 3.1 shows two mass hangers joined over a pulley; hanger A falls a measured height h to the floor.
Describe one source of error when measuring h in Fig. 3.2 and one linked improvement to reduce that error.
Describe one source of error when measuring h in Fig. 3.2 and one linked improvement to reduce that error.
Fig. 3.2
Answer guidance
Describe Say what happens, in order. Reasons are not required unless the question also asks why.
[2 marks]
(b)(i)Read question and case materials as text
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A student investigates a falling mass. Fig. 3.1 shows two mass hangers joined over a pulley; hanger A falls a measured height h to the floor.
Fig. 3.3 shows three stopwatch readings for a 5.0 g mass: 6.11 s, 5.87 s and 6.02 s. Determine an accurate average descent time t_av and show your working.
Fig. 3.3 shows three stopwatch readings for a 5.0 g mass: 6.11 s, 5.87 s and 6.02 s. Determine an accurate average descent time t_av and show your working.
Fig. 3.3
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)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.
A student investigates a falling mass. Fig. 3.1 shows two mass hangers joined over a pulley; hanger A falls a measured height h to the floor.
Complete Table 3.1 for m = 5.0 g using the three times in Fig. 3.3 and your average from (b)(i). Add quantities and units to the headings. The remaining mass rows are 7.0, 9.0, 11.0 and 13.0 g.
Complete Table 3.1 for m = 5.0 g using the three times in Fig. 3.3 and your average from (b)(i). Add quantities and units to the headings. The remaining mass rows are 7.0, 9.0, 11.0 and 13.0 g.
Fig. 3.3
Table 3.1 — complete the 5.0 g row and units
mass m / …
time 1 / …
time 2 / …
time 3 / …
average time t_av / …
5.0
…
…
…
…
7.0
4.03
4.40
4.09
4.2
9.0
3.06
2.93
3.09
3.0
11.0
2.50
2.59
2.56
2.6
13.0
2.13
2.28
2.28
2.2
Swipe sideways to see all columns.
Answer guidance
Complete Fill in every gap. A partly completed answer usually scores partly.
[3 marks]
(c)Read question and case materials as text
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A student investigates a falling mass. Fig. 3.1 shows two mass hangers joined over a pulley; hanger A falls a measured height h to the floor.
On the supplied original blank grid (page 11), plot average time t_av on the y-axis against mass m on the x-axis and draw a best-fit curve. Table 3.1 gives (m/g, t_av/s): (5.0,6.0), (7.0,4.2), (9.0,3.0), (11.0,2.6), (13.0,2.2).
On the supplied original blank grid (page 11), plot average time t_av on the y-axis against mass m on the x-axis and draw a best-fit curve. Table 3.1 gives (m/g, t_av/s): (5.0,6.0), (7.0,4.2), (9.0,3.0), (11.0,2.6), (13.0,2.2).
Original blank graph grid, Q3(c), page 11
Plot your own points and curve on the original blank grid. The worked example is shown only after an attempt.
[4 marks]
(d)
Describe the relationship between average descent time t_av and mass m shown by Table 3.1/the graph, including how the rate of change behaves.
Answer guidance
Describe Say what happens, in order. Reasons are not required unless the question also asks why.
[2 marks]
5054/41/M/J/23Cambridge O Level Physics 5054 · May/June 2023 · Paper 4 variant 1 · Question 3