OCR SUMMER 2026
PREDICTED PAPER
A Level Physics A
WORKED SOLUTIONS
H556/02 Exploring physics
Time allowed: 2 hours 15 minutes
You must have:
• the Data, Formulae and Relationships Booklet
You can use:
a scientific or graphical calculator
a ruler (cm/mm)
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 100.
• 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 29 pages.
ADVICE
• Read each question carefully before you start your answer.
Turn over
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, Section A
You should spend a maximum of 30 minutes on this section.
Write your answer to each question in the box provided.
Answer all the questions.
1. A student measures the diameter of a wire using a micrometer screw gauge and
records the following values (in mm): 1.42, 1.40, 1.43, 1.41, 1.42.
What is the percentage uncertainty in the mean diameter?
A 0.7%
B 1.0%
C 1.4%
D 2.1%
Your answer [1]
2. A resistor is connected in a circuit. The current through it is (3.0 ± 0.1) A and the potential
difference across it is (12.0 ± 0.2) V. What is the percentage uncertainty in the power
dissipated?
A 1.7%
B 3.3%
C 4.7%
D 5.0%
Your answer [1]
for more: tyrionpapers.com
, 3. A wave has a frequency of 400 Hz and travels at 320 m s⁻¹. What is its wavelength?
A 0.60 m
B 0.80 m
C 1.25 m
D 1.60 m
Your answer [1]
4. Which of the following correctly describes a progressive transverse wave?
A Particles vibrate parallel to the direction of energy transfer; energy is transferred by the
medium
B Particles vibrate perpendicular to the direction of energy transfer; the medium is not
permanently displaced
C Particles vibrate parallel to the direction of energy transfer; the medium is not permanently
displaced
D Particles vibrate perpendicular to the direction of energy transfer; energy is stored in nodes
Your answer [1]
for more: tyrionpapers.com
PREDICTED PAPER
A Level Physics A
WORKED SOLUTIONS
H556/02 Exploring physics
Time allowed: 2 hours 15 minutes
You must have:
• the Data, Formulae and Relationships Booklet
You can use:
a scientific or graphical calculator
a ruler (cm/mm)
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 100.
• 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 29 pages.
ADVICE
• Read each question carefully before you start your answer.
Turn over
for more: tyrionpapers.com
, Section A
You should spend a maximum of 30 minutes on this section.
Write your answer to each question in the box provided.
Answer all the questions.
1. A student measures the diameter of a wire using a micrometer screw gauge and
records the following values (in mm): 1.42, 1.40, 1.43, 1.41, 1.42.
What is the percentage uncertainty in the mean diameter?
A 0.7%
B 1.0%
C 1.4%
D 2.1%
Your answer [1]
2. A resistor is connected in a circuit. The current through it is (3.0 ± 0.1) A and the potential
difference across it is (12.0 ± 0.2) V. What is the percentage uncertainty in the power
dissipated?
A 1.7%
B 3.3%
C 4.7%
D 5.0%
Your answer [1]
for more: tyrionpapers.com
, 3. A wave has a frequency of 400 Hz and travels at 320 m s⁻¹. What is its wavelength?
A 0.60 m
B 0.80 m
C 1.25 m
D 1.60 m
Your answer [1]
4. Which of the following correctly describes a progressive transverse wave?
A Particles vibrate parallel to the direction of energy transfer; energy is transferred by the
medium
B Particles vibrate perpendicular to the direction of energy transfer; the medium is not
permanently displaced
C Particles vibrate parallel to the direction of energy transfer; the medium is not permanently
displaced
D Particles vibrate perpendicular to the direction of energy transfer; energy is stored in nodes
Your answer [1]
for more: tyrionpapers.com
