Please write clearly in block capitals.
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Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
PHYSICS
AQA AS Physics Paper 1 (7407/1)
Study Guide 2026
Materials
For Examiner’s Use
For this paper you must have:
• a pencil and a ruler Question Mark
• a scientific calculator
1
• a Data and Formulae Booklet
• a protractor. 2
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 not write TOTAL
outside the box around each page or on blank pages.
• 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 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 70.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN247407101*
7407/1
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 An electron neutrino interacts with a chlorine-37 nucleus to produce an argon-37
nucleus and an electron.
The interaction is represented by the equation:
37 37
ve
+ Cl
→ Ar
+ e
17 18
0 1 . 1 Explain, with reference to appropriate conservation laws, why the electron is emitted
in this interaction.
[2 marks]
0 1 . 2 Calculate the specific charge of the argon-37 nucleus.
[2 marks]
specific charge = C kg−1
*02*
, 3
Do not write
outside the
0 1 . 3 In a different interaction, the argon-37 nucleus interacts with an electron. box
Figure 1 represents the interaction of a quark in a baryon of the nucleus.
Figure 1
Deduce the exchange particle and the effect on the baryon.
Give one reason to support each answer.
[4 marks]
exchange particle
reason
effect on baryon
reason
Question 1 continues on the next page
Turn over ►
*03*
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
PHYSICS
AQA AS Physics Paper 1 (7407/1)
Study Guide 2026
Materials
For Examiner’s Use
For this paper you must have:
• a pencil and a ruler Question Mark
• a scientific calculator
1
• a Data and Formulae Booklet
• a protractor. 2
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 not write TOTAL
outside the box around each page or on blank pages.
• 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 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 70.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN247407101*
7407/1
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 An electron neutrino interacts with a chlorine-37 nucleus to produce an argon-37
nucleus and an electron.
The interaction is represented by the equation:
37 37
ve
+ Cl
→ Ar
+ e
17 18
0 1 . 1 Explain, with reference to appropriate conservation laws, why the electron is emitted
in this interaction.
[2 marks]
0 1 . 2 Calculate the specific charge of the argon-37 nucleus.
[2 marks]
specific charge = C kg−1
*02*
, 3
Do not write
outside the
0 1 . 3 In a different interaction, the argon-37 nucleus interacts with an electron. box
Figure 1 represents the interaction of a quark in a baryon of the nucleus.
Figure 1
Deduce the exchange particle and the effect on the baryon.
Give one reason to support each answer.
[4 marks]
exchange particle
reason
effect on baryon
reason
Question 1 continues on the next page
Turn over ►
*03*
