AQA GCSE Combined Science Trilogy Physics Paper 1F 2025 | Foundation Tier & mark scheme

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I declare this is my own work.
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GCSE
COMBINEDSCIENCE:TRILOGY
Foundation Tier b b
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PhysicsPaper1F b b




Thursday22May2025 b b b Morning Timeallowed: 1hour15minutes
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Materials For Examiner’s Use
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For this paper you must have:
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Question Mark
 a ruler
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 a scientific calculator
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 the Physics Equations Sheet (enclosed).
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Instructions
 Use black ink or black ball-point pen.
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 Pencil should only be used for drawing.
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 Fill in the boxes at the top of this page.
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 Answer all questions in the spaces provided.
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 If you need extra space for your answer(s), use the lined pages at the end of this b
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ook. Write the question number against your answer(s).
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 Do all rough work in this book. Cross through any work you do not want to be marke
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d.
 In all calculations, show clearly how you work out your answer.
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Information
 The maximum mark for this paper is 70.
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 The marks for questions are shown in brackets.
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 You are expected to use a calculator where appropriate.
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 You are reminded of the need for good English and clear presentation in your answers.
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IB/M/Jun25/G4007/E8 8464/P/1F

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0 1 There are different isotopes of the element lead.
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0 1 . 1 What is the difference between the atoms of different isotopes of lead? Tick
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() one box.
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The number of electrons
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The number of neutrons
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The number of protons
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0 1 . 2 The isotope lead-210 is radioactive.
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What is meant by ‘lead-
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210 is radioactive’? Tick () one box.
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Lead-210 forms many different compounds.
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Lead-210 has unstable nuclei. b b b




Lead-210 melts at a low temperature.
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0 1 . 3 The isotope lead-
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210 emits beta radiation. What is beta radiation?
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Tick () one box.
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Electromagnetic radiation emitted from nuclei b b b b




High speed electrons ejected from nuclei
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Particles that consist of two neutrons and two protons
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Question 1 continues on the next page
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Turn over ►
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The paint in an old painting contains the isotope lead-210.
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The lead-210 in the paint can be used to estimate the age of the painting.
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Figure 1 shows how the activity of the lead-210 in the paint changes with time.
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Figure 1 b




0 1 . 4 What was the initial activity of the lead-210 in the paint?
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Use Figure 1.
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Activity = b b b kBq




IB/M/Jun25/8464/P/1F