OCR AS Level Physics B (Advanced Physics) H557/03: Practical skills in physics June
2025 Combined QUESTION PAPER and MARK SCHEME
Oxford Cambridge and RSA
Tuesday 17 June 20 25 – Morning
2
66
6
6
3
22
2
2 9
33
3
A L e v el Physics B (Advan cing Phys ics)
22 33 99
2 6 3 2 9 3
2 6 3 2 9 3
2 6 3 2 9 3
H557/ 03 Practical skills 6in phys ics
2 3 2 9 3
2 6 3 2 9 3
2 6 3 2 9 3
Time al2lowed: 1 hour 30 minu6tes
*185 5 0 456 09 *
3 2 9 3
6 3 2 9 3
2
6 3 2 9 3
You mu22st have: 6 3 2 9 3
• the Da ta, Formulae and Relationsh6ips Bookle3 t 2 9 3
2
2 6 3 2 9 3
6
You can2 use:
• a scie 3 2
2 9 3
3
2ntific or graphical calculator 6 3 9
6 3 2 9 3
• a ruler22(cm/mm) 6 3 2 9 3
2 6 3 2 9 3
6 2 9 3
2 3
6 2 9 3
2 3
6 2 9 3
2 3
2 6 3 2 9 3
2 3 9 * H 5 5 7 0 3 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 24 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/4745/3] OCR is an exempt Charity
DC (PQ/SW) 364992/5 Turn over
, 2
Section A
1 This question is about terminal velocity and drag for falling cupcake cases.
(a) A student times how long a cupcake case takes to fall though a height of 2.000 ± 0.005 m using
the equipment as shown in Fig. 1.1.
Fig. 1.1
cupcake case
metre rule
clamp stand
A light-gate timer (not shown) is used, and the measurement repeated five times. The times are
shown in Table 1.1.
Table 1.1
Time/ s
1.68
1.69
1.71
1.70
1.73
(i) Determine the absolute uncertainty in the measurement of time.
Absolute uncertainty = ± ...................................................... s [1]
© OCR 2025
, 3
(ii) Calculate the average velocity of the cupcake case.
Include the uncertainty in your answer.
Give your answer to an appropriate number of significant figures.
Average velocity = ....................... ± ....................... m s–1 [3]
(b) The cupcake case will accelerate from rest to reach terminal velocity at some point during its fall.
The student is calculating the average velocity.
Comment on how the average velocity relates to the terminal velocity.
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
. ................................................................................................................................................. [3]
© OCR 2025 Turn over
, 4
(c) The experiment is repeated with an increasing number of stacked cupcake cases, as shown in
Fig. 1.2.
Fig. 1.2
The average times are recorded in Table 1.2.
Table 1.2
Average time
Number of cup cases
t/s
1
2 1.27
3 0.97
4 0.81
5 0.70
Explain the trend in the relative percentage uncertainty in the calculated values of average
velocity as the number of cupcake cases increases.
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
. ................................................................................................................................................. [2]
© OCR 2025
2025 Combined QUESTION PAPER and MARK SCHEME
Oxford Cambridge and RSA
Tuesday 17 June 20 25 – Morning
2
66
6
6
3
22
2
2 9
33
3
A L e v el Physics B (Advan cing Phys ics)
22 33 99
2 6 3 2 9 3
2 6 3 2 9 3
2 6 3 2 9 3
H557/ 03 Practical skills 6in phys ics
2 3 2 9 3
2 6 3 2 9 3
2 6 3 2 9 3
Time al2lowed: 1 hour 30 minu6tes
*185 5 0 456 09 *
3 2 9 3
6 3 2 9 3
2
6 3 2 9 3
You mu22st have: 6 3 2 9 3
• the Da ta, Formulae and Relationsh6ips Bookle3 t 2 9 3
2
2 6 3 2 9 3
6
You can2 use:
• a scie 3 2
2 9 3
3
2ntific or graphical calculator 6 3 9
6 3 2 9 3
• a ruler22(cm/mm) 6 3 2 9 3
2 6 3 2 9 3
6 2 9 3
2 3
6 2 9 3
2 3
6 2 9 3
2 3
2 6 3 2 9 3
2 3 9 * H 5 5 7 0 3 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 24 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/4745/3] OCR is an exempt Charity
DC (PQ/SW) 364992/5 Turn over
, 2
Section A
1 This question is about terminal velocity and drag for falling cupcake cases.
(a) A student times how long a cupcake case takes to fall though a height of 2.000 ± 0.005 m using
the equipment as shown in Fig. 1.1.
Fig. 1.1
cupcake case
metre rule
clamp stand
A light-gate timer (not shown) is used, and the measurement repeated five times. The times are
shown in Table 1.1.
Table 1.1
Time/ s
1.68
1.69
1.71
1.70
1.73
(i) Determine the absolute uncertainty in the measurement of time.
Absolute uncertainty = ± ...................................................... s [1]
© OCR 2025
, 3
(ii) Calculate the average velocity of the cupcake case.
Include the uncertainty in your answer.
Give your answer to an appropriate number of significant figures.
Average velocity = ....................... ± ....................... m s–1 [3]
(b) The cupcake case will accelerate from rest to reach terminal velocity at some point during its fall.
The student is calculating the average velocity.
Comment on how the average velocity relates to the terminal velocity.
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
. ................................................................................................................................................. [3]
© OCR 2025 Turn over
, 4
(c) The experiment is repeated with an increasing number of stacked cupcake cases, as shown in
Fig. 1.2.
Fig. 1.2
The average times are recorded in Table 1.2.
Table 1.2
Average time
Number of cup cases
t/s
1
2 1.27
3 0.97
4 0.81
5 0.70
Explain the trend in the relative percentage uncertainty in the calculated values of average
velocity as the number of cupcake cases increases.
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
. ................................................................................................................................................. [2]
© OCR 2025
