Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS
Paper 1
AQA A-LEVEL PHYSICS Paper 1 QP MAY 2025
Friday 23 May 2025 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
a pencil and a ruler Question Mark
a scientific calculator 1
a Data and Formulae Booklet
2
a protractor.
3
Instructions 4
Use black ink or black ball-point pen.
5
Fill in the boxes at the top of this page.
Answer all questions. 6
You must answer the questions in the spaces provided. Do 7
not write outside the box around each page or on blank 8
pages.
9–33
If you need extra space for your answer(s), use the lined pages at
the end of this book. Write the question number against your TOTAL
answer(s).
Do all rough work in this book. Cross through any work you do
not want to be marked.
Show all your working.
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 85.
You are expected to use a scientific calculator where appropriate.
A Data and Formulae Booklet is provided as a loose insert.
IB/M/Jun25/G4006/E14
,tyrion pap ers .co m
7 4 0 8 /1
, 2
Do not write
outside the
Section A box
Answer all questions in this
section.
0 1 This question is about an isotope of titanium that only decays by electron
capture.
0 1 .1 Complete Figure 1 to show the quark change that occurs during electron
capture. Label the incoming and outgoing particles and the exchange
particle.
[3 marks]
Figure 1
0 1 . In some circumstances, a nucleus of this isotope can exist with no orbiting
2 electrons.
Explain why a neutral atom of this isotope is less stable than a nucleus
that has no orbiting electrons.
[1 mark]
tyrionpapers.com
IB/M/
Jun25/7408/1
, 3
Do not write
outside the
0 1 .3 A nucleus of this isotope of titanium has a proton number of 22 and a box
specific charge of 4.8 × 107 C kg−1.
Determine the number of neutrons in this nucleus.
[2 marks]
6
number of neutrons =
Turn over for the next question
Turn over ►
tyrionpapers.com
IB/M/
Jun25/7408/1
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS
Paper 1
AQA A-LEVEL PHYSICS Paper 1 QP MAY 2025
Friday 23 May 2025 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
a pencil and a ruler Question Mark
a scientific calculator 1
a Data and Formulae Booklet
2
a protractor.
3
Instructions 4
Use black ink or black ball-point pen.
5
Fill in the boxes at the top of this page.
Answer all questions. 6
You must answer the questions in the spaces provided. Do 7
not write outside the box around each page or on blank 8
pages.
9–33
If you need extra space for your answer(s), use the lined pages at
the end of this book. Write the question number against your TOTAL
answer(s).
Do all rough work in this book. Cross through any work you do
not want to be marked.
Show all your working.
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 85.
You are expected to use a scientific calculator where appropriate.
A Data and Formulae Booklet is provided as a loose insert.
IB/M/Jun25/G4006/E14
,tyrion pap ers .co m
7 4 0 8 /1
, 2
Do not write
outside the
Section A box
Answer all questions in this
section.
0 1 This question is about an isotope of titanium that only decays by electron
capture.
0 1 .1 Complete Figure 1 to show the quark change that occurs during electron
capture. Label the incoming and outgoing particles and the exchange
particle.
[3 marks]
Figure 1
0 1 . In some circumstances, a nucleus of this isotope can exist with no orbiting
2 electrons.
Explain why a neutral atom of this isotope is less stable than a nucleus
that has no orbiting electrons.
[1 mark]
tyrionpapers.com
IB/M/
Jun25/7408/1
, 3
Do not write
outside the
0 1 .3 A nucleus of this isotope of titanium has a proton number of 22 and a box
specific charge of 4.8 × 107 C kg−1.
Determine the number of neutrons in this nucleus.
[2 marks]
6
number of neutrons =
Turn over for the next question
Turn over ►
tyrionpapers.com
IB/M/
Jun25/7408/1
