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AQA A-LEVEL PHYSICS Paper 3 Section B Turning points in physics QP JUNE 2025

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AQA A-LEVEL PHYSICS Paper 3 Section B Turning points in physics QP JUNE 2025

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AQA A-LEVEL PHYSICS Paper 3 Section B Turning points in physics QP JUNE 2025


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I declare this is my own work.

A-level
PHYSICS
Paper 3
Section B Turning points in
physics

Tuesday 17 June 2025 Morning Time allowed: The total
time for both sections of
Materials this paper is
For this paper you must have:
 a pencil and a ruler 2 hours. You are advised to
 a scientific calculator spend approximately
 a Data and Formulae Booklet 50 minutes on this section.
 a protractor.

Instructions
 Use black ink or black ball-point pen. For Examiner’s Use
 Fill in the boxes at the top of this page.
Question Mark
 Answer all questions.
 You must answer the questions in the spaces provided. Do 1
not write outside the box around each page or on blank 2
IB/M/Jun25/G4006/E7

pages.
3
 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 4
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 35.
 You are expected to use a scientific calculator where appropriate.
 A Data and Formulae Booklet is provided as a loose insert.

, mor e: t yrio npa pe rs. com
for 7 4 0 BD

, 2
Do not
write
Section B outside
box the


Answer all questions in this
section.


0 1 This question is about Thomson’s determination of the electron’s specific charge.

You should not use the values of the electron charge, mass or specific
charge from the data and formulae booklet in this question.

Figure 1 shows part of the apparatus that Thomson used to measure the
specific charge of the electron.

Figure 1




0 1 .1 A modern version of Thomson’s apparatus uses thermionic emission in the
production of the electron beam.

Suggest how the electron beam is produced in this modern version.
You should include a labelled diagram and suitable values for the
power supplies used.
[3 marks]




for more: tyrionpapers.com
IB/M/
Jun25/7408/3BD

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