Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS 2025 PREDICTED PAPER
Paper 3
Section B Astrophysics
Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
• a ruler
• a scientific calculator Question Mark
• the periodic table (enclosed). 1
2
Instructions
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
• Answer all questions in the spaces provided. Do not write outside TOTAL
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.
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 35.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation
in your answers.
SOLE Property of Tyrion's AQA AL Physics Question Paper 3BA 2025 Predicted
, 0 1 A student is using a radio telescope to observe distant quasars. The telescope has
a dish diameter of 25 meters and operates at a wavelength of 21 cm.
0 1 . 1 Determine the angular resolution of the telescope at this wavelength.
[2 marks]
0 1 . 2 Explain how increasing the dish diameter affects the angular resolution.
[2 marks]
AQA AL Physics Question Paper 3BA 2025 Predicted
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS 2025 PREDICTED PAPER
Paper 3
Section B Astrophysics
Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
• a ruler
• a scientific calculator Question Mark
• the periodic table (enclosed). 1
2
Instructions
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
• Answer all questions in the spaces provided. Do not write outside TOTAL
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.
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 35.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation
in your answers.
SOLE Property of Tyrion's AQA AL Physics Question Paper 3BA 2025 Predicted
, 0 1 A student is using a radio telescope to observe distant quasars. The telescope has
a dish diameter of 25 meters and operates at a wavelength of 21 cm.
0 1 . 1 Determine the angular resolution of the telescope at this wavelength.
[2 marks]
0 1 . 2 Explain how increasing the dish diameter affects the angular resolution.
[2 marks]
AQA AL Physics Question Paper 3BA 2025 Predicted
