_aqa_a___level_physics___paper_3_section_A 2025

A-LEVEL PHYSIC PAPER 3

TIME:2HRS

, Please write clearly in block capitals.

Centre number Candidate number


Surname

Forename(s)

Candidate signatuure




A-level
PHYSICS
Paper 3
Section A



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 the boxes at the top of this page.
 Answer all questions.
 You must answer the questions in the spaces provided. Do not write
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). For Examiner’s Use
 Do all rough work in this book. Cross through any work you do not want Question Mark
to be marked.
1
 Show all your working.
2
Information 3
 The marks for questions are shown in brackets.
 The maximum mark for this paper is 45. TOTAL
 You are expected to use a scientific calculator where appropriate.
 A Data and Formulae Booklet is provided as a loose insert.



Paper 3

, 2
Paper 3

Section A


Answer all questions in this section.


0 1 Figure 1 shows apparatus used to investigate the inverse-square law for gamma
radiation.
Figure 1