A-level
PHYSICS
Paper 1
Friday 24 May 2024 Morning Time allowed: 2 hours
Materials
For this paper you must have:
• a pencil and a ruler
• a scientific calculator
• a Data and Formulae Booklet
• a protractor.
Instructions
• Use black ink or black ball-point pen.
• Fill in t...
Friday 24 May 2024 Morning Time allowed: 2 hours
Materials For Examiner’s Use
For this paper you must have:
Question Mark
a pencil and a ruler
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. 6
Answer all questions.
7
You must answer the questions in the spaces provided. Do
not write outside the box around each page or on blank 8–32
pages. TOTAL
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.
A level phyics paper1
,A level physics paper1
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/Jun24/E10
7408/1
A level phyics paper1
, 2
Do not write
outside the
Section A box
Answer all questions in this
section.
0 1 . 1 State the names of the four fundamental interactions.
[1 mark]
1
2
3
4
0 1
. 2 State the products of the decay of a free neutron.
[1 mark]
0 1 . 3 Explain which of the fundamental interactions is responsible for the decay
of the neutron.
[2 marks]
0 1 . 4 The forces between two moving electrons cause their paths to change.
Explain, using the concept of exchange particles, why the electron paths
change.
[3 marks]
7
IB/M/
Jun24/7408/1
, 3
Do not write
outside the
0 2 A positive pion collides with a neutron and the following interaction is box
observed:
+ + n + + Σ0
Σ0 is a neutral sigma particle with a strangeness of −1
The interaction can be used to deduce the classifications of the Σ0.
0 2
. 1 Identify the classifications of each particle in
Table 1. Tick () the appropriate boxes for each
particle.
[2 marks]
Table 1
Particle Baryon Hadron Lepton Meson
π+
n
K+
Σ0
0 2 . 2 A conservation rule predicts that the following interaction cannot occur:
+ n + Σ0
State the conservation
rule. Go on to explain your
answer.
[3 marks]
Question 2 continues on the next page
IB/M/
Jun24/7408/1
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