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A-Level AQA 2024 Physics Paper 1
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A-Level AQA 2024 Physics Paper 1
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Revision303 Revision303 Revision303Please write clearly in block capitals.
Centre number Candidate number
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I declare this is my own work.
A-level
PHYSICS
Paper 1
Friday 24 May 2024
Revision303 Morning
Revision303 hours
Time allowed: 2Revision303
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 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.
• You must answer the questions in the spaces provided. Do not write 7
outside the box around each page or on blank pages. 8–32
• 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). TOTAL
• 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.
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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]
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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
*02*
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3
Do not write
outside the
0 2 A positive pion collides with a neutron and the following interaction is observed: box
π+ + n → Κ + + 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+
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Σ0
0 2 . 2 A conservation rule predicts that the following interaction cannot occur:
π− + n → Κ − + Σ0
State the conservation rule.
Go on to explain your answer.
[3 marks]
Question 2 continues on the next page
Turn over ►
*03*
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4
Do not write
outside the
One way in which neutral pions decay is box
π0 → e− + e+ + γ
0 2 . 3 Compare the rest energies of the particles involved in this decay.
[2 marks]
0 2 . 4 The decay of the neutral pion leads to the production of further gamma photons.
Explain why.
[1 mark]
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0 2 . 5 Revision303
The Standard Model is a theory that classifies elementary particles. Revision303
Evidence for the theory has been collected since about 1950. However, the term
Standard Model has only been used since 1973.
Suggest why progress in particle physics is slow.
[1 mark]
9
*04*
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