2025 OCR A Level Physics B (Advancing Physics) H557/01 Fundamentals of Physics
Combined Question Paper & Final Marking Scheme
Oxford Cambridge and RSA
Friday 23 May 2025 – Morning
A Level Physics B (Advancing Physics)
H557/01 Fundamentals of Physics
Time allowed: 2 hours 15 minutes
*1854807309*
You must have:
• the Data, Formulae and Relationships Booklet
You can use:
• a scientific or graphical calculator
• a ruler (cm/mm)
* H 5 5 7 0 1 *
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 page 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 110.
• 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 40 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/4745/3] OCR is an exempt Charity
DC (DE/FC) 357522/3 Turn over
, 2
Section A
You should spend a maximum of 40 minutes on this section.
Write your answer to each question in the box provided.
1 A rectangular digital image measures 1900 pixels by 1100 pixels. Each pixel is represented using
3 bytes.
What is the total amount of information in this image?
A 87.1 kbit
B 697 kbit
C 6.27 Mbit
D 50.2 Mbit
Your answer [1]
2 A student measures the change in temperature of some water when it is heated for 10 seconds.
The student’s results are:
Starting temperature = (53.4 ± 0.2) °C
Final temperature = (96.1 ± 0.2) °C
What is the average rate of change in temperature of the water together with its associated
uncertainty?
A (4.27 ± 0.02) °C s–1
B (4.27 ± 0.04) °C s–1
C (4.27 ± 0.2) °C s–1
D (4.27 ± 0.4) °C s–1
Your answer [1]
© OCR 2025
, 3
The following information is for use in questions 3 and 4.
The diagram shows a camera being used to take a picture of a person. The image formed on the
camera detector screen is sharp and in focus.
Camera lens
Not to scale
Detector screen
5m 3 cm
3 What is the magnification of the image?
A –167
B –0.0060
C +0.0060
D +167
Your answer [1]
4 What is the focal length of the lens?
A –3.02 cm
B –2.98 cm
C 2.98 cm
D 3.02 cm
Your answer [1]
© OCR 2025 Turn over
, 4
5 Two identical cells are connected in series.
The e.m.f. of each cell is ε and the internal resistance of each cell is r.
Which row shows the combined e.m.f. and the combined resistance of the two cells when they
are connected in series?
E.m.f Internal resistance
A –ε r
B ε 2r
C 2ε r
D 2ε 2r
Your answer [1]
6 A number of identical resistors are connected in parallel to a cell of negligible internal resistance.
Which graph shows how the power dissipated in the circuit varies with the number of resistors?
A B
Power Power
0 0
0 0
Number of resistors Number of resistors
C D
Power Power
0 0
0 0
Number of resistors Number of resistors
Your answer [1]
© OCR 2025
Combined Question Paper & Final Marking Scheme
Oxford Cambridge and RSA
Friday 23 May 2025 – Morning
A Level Physics B (Advancing Physics)
H557/01 Fundamentals of Physics
Time allowed: 2 hours 15 minutes
*1854807309*
You must have:
• the Data, Formulae and Relationships Booklet
You can use:
• a scientific or graphical calculator
• a ruler (cm/mm)
* H 5 5 7 0 1 *
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 page 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 110.
• 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 40 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/4745/3] OCR is an exempt Charity
DC (DE/FC) 357522/3 Turn over
, 2
Section A
You should spend a maximum of 40 minutes on this section.
Write your answer to each question in the box provided.
1 A rectangular digital image measures 1900 pixels by 1100 pixels. Each pixel is represented using
3 bytes.
What is the total amount of information in this image?
A 87.1 kbit
B 697 kbit
C 6.27 Mbit
D 50.2 Mbit
Your answer [1]
2 A student measures the change in temperature of some water when it is heated for 10 seconds.
The student’s results are:
Starting temperature = (53.4 ± 0.2) °C
Final temperature = (96.1 ± 0.2) °C
What is the average rate of change in temperature of the water together with its associated
uncertainty?
A (4.27 ± 0.02) °C s–1
B (4.27 ± 0.04) °C s–1
C (4.27 ± 0.2) °C s–1
D (4.27 ± 0.4) °C s–1
Your answer [1]
© OCR 2025
, 3
The following information is for use in questions 3 and 4.
The diagram shows a camera being used to take a picture of a person. The image formed on the
camera detector screen is sharp and in focus.
Camera lens
Not to scale
Detector screen
5m 3 cm
3 What is the magnification of the image?
A –167
B –0.0060
C +0.0060
D +167
Your answer [1]
4 What is the focal length of the lens?
A –3.02 cm
B –2.98 cm
C 2.98 cm
D 3.02 cm
Your answer [1]
© OCR 2025 Turn over
, 4
5 Two identical cells are connected in series.
The e.m.f. of each cell is ε and the internal resistance of each cell is r.
Which row shows the combined e.m.f. and the combined resistance of the two cells when they
are connected in series?
E.m.f Internal resistance
A –ε r
B ε 2r
C 2ε r
D 2ε 2r
Your answer [1]
6 A number of identical resistors are connected in parallel to a cell of negligible internal resistance.
Which graph shows how the power dissipated in the circuit varies with the number of resistors?
A B
Power Power
0 0
0 0
Number of resistors Number of resistors
C D
Power Power
0 0
0 0
Number of resistors Number of resistors
Your answer [1]
© OCR 2025
