GuidesPhysicsPaper 1 · last-minute revision
3 days to go

GCSE Physics Paper 1: last-minute revision

Three days left. Paper 1 is a calculation paper more than a recall paper. You need to know which equations to use, not just what they are. Here's the order that gets you the most marks.

AQA 8463 (topics apply broadly to Edexcel 1PH0)
The plan

Your 3-day plan

One focus per day, building to a timed run. Work it in order.

3
3 days to go

Rebuild the equations you must recall from memory

  • Write out every Paper 1 equation not on the AQA equations sheet from memory: density (ρ = m/V), efficiency (useful output / total input), the specific heat capacity and specific latent heat equations, and Q = It.
  • For each one, do 3 rearrangements. Solve for each letter in turn. This is where marks are actually lost, not in recalling the equation itself.
  • Work through electrical power and energy: P = IV, P = I²R, P = V²/R, and E = Pt. Practise choosing which version of the power equation fits the data you're given.
2
2 days to go

Required practicals and long-answer questions

  • Redo the specific heat capacity practical (RP1/RP2) and the density practical (RP5): method, control variables, and one improvement for each. Both have appeared as 6-mark method questions.
  • Redo the resistance of a wire practical (RP3) and I-V characteristics (RP4). Know why filament lamp resistance increases with temperature and why a diode only conducts one way.
  • Practise one 6-mark 'describe the method' answer under timed conditions (roughly 8 minutes). These need a logical sequence, not a list of equipment.
1
1 day to go

Light touch: consolidate, don't cram new content

  • Run through the priority topic list below using flashcards only. Don't open new content.
  • Redo 2-3 past exam questions on electrical power and specific heat capacity, checking your working against the mark scheme line by line.
  • Check unit conversions one more time: kW to W, minutes to seconds, cm² to m², g to kg. These cost easy marks every single sitting.
Priority order

The topics that come up most

Ranked from analysed past papers. Start at the top: if you run out of time, you will have covered the most-tested ground.

1

Electrical power and energy transfers

Highest-marks P1 topic across 4 sittings analysed (37 marks, appeared in all 4). P=IV, P=I²R, P=V²/R and E=Pt questions stack up across a paper.

2

Density

Appeared in all 4 sittings analysed, often as a required practical (RP5) long-answer question worth 6-8 marks in one go.

3

Resistance and Ohm's law

Appeared in all 4 sittings. Resistance calculations plus the resistivity equation (R = ρL/A) have both come up as 3-4 mark multi-step questions.

4

Specific heat capacity

Appeared in all 4 sittings, usually as a required practical (RP1/RP2) question. Expect a calculation using E = mcΔT plus a method or evaluation question.

5

Specific latent heat

Consistently examined across all 4 sittings. E = mL calculations, often combined with graph interpretation of heating curves.

6

Efficiency

Appeared in all 4 sittings, both as a calculation (efficiency = useful output / total input) and as 'explain why efficiency is less than 100%'.

7

Current and charge

Appeared in all 4 sittings, usually combined with power or resistance in multi-step questions. Know Q = It cold.

8

Radioactive decay

Appeared in all 4 sittings. Alpha, beta and gamma properties, nuclear equations, and penetrating power questions come up together.

Your Knowledge Organisers

PrepWise has a one-page Knowledge Organiser for every topic above. In your final 3 days, use them the same way each time: cover the page, recall everything you can onto paper, check against the original, then repeat only the bits you missed.

Open the Physics Knowledge Organisers
Cheat sheet

Exam technique

Rules specific to Paper 1. On this paper, structure earns as many marks as knowledge.

1

Know what's NOT on the equations sheet

The AQA equations sheet gives you the 'physics equations' list but not the 'memorise these' list. Density, efficiency, specific heat capacity, specific latent heat and Q = It must come from memory. If you're relying on the sheet for these, you'll lose time hunting for something that isn't there.

2

Show your substitution before you rearrange

Write the equation, then substitute the numbers in, then rearrange. Examiners give a mark for correct substitution even if your final rearranged answer is wrong. Rearranging first and substituting last hides your working and loses that mark.

3

Convert units before you calculate, not after

kW to W (×1000), minutes to seconds (×60), cm² to m² (÷10,000), g to kg (÷1000). Do the conversion in a separate line before you touch the main equation. Mixing units mid-calculation is the single most common way to lose an otherwise-correct answer.

4

Required practical questions want YOUR method, not a textbook one

'Describe how you would...' questions expect the specific apparatus and steps from the AQA required practicals (SHC, density, resistance, I-V characteristics): control variables, what you measure, and how you calculate the result. Vague answers like 'measure it carefully' score zero.

5

State the correct number of significant figures

Give your final answer to the same number of significant figures as the data in the question (usually 2 or 3) unless told otherwise. Don't round mid-calculation. Carry the full number through and round only at the end.

Avoid these

5 mistakes that cost marks

The errors examiners see most on this paper. Each one is an easy mark you already know how to keep.

Confusing the three power equations (P=IV, P=I²R, P=V²/R) and picking the wrong one for the data givenCheck what you're given first. If you have current and resistance, use P=I²R. If voltage and resistance, use P=V²/R. Only use P=IV when you have both current and voltage directly.

Forgetting to square v in kinetic energy or squaring the wrong number in E=mcΔT-style equationsUnderline what needs squaring before you substitute. Write Eₖ = ½ × m × v² with v² marked, don't try to do it in your head.

Leaving the answer in the wrong unit (e.g. giving resistance in mΩ or energy in kJ without converting)Always write the unit next to your final answer and check it matches what the question asks for. If it doesn't match, you've likely skipped a conversion step.

Writing 'because it loses energy' for an efficiency question without saying where the energy goesName the wasted energy store, usually thermal energy dissipated to the surroundings due to friction or resistance. Examiners want the mechanism, not just 'lost'.

Mixing up alpha, beta and gamma penetrating power and what stops each oneLearn the trio as one block: alpha stopped by paper, beta stopped by a few mm of aluminium, gamma needs thick lead or concrete to significantly reduce it. Always in that order.

Exam day

The morning of the exam

The 60 minutes before you walk in. Review what you know and settle your nerves.

  • Skim the priority topic list above one final time. Don't start anything new.
  • Reread your equations list once: density, efficiency, SHC, specific latent heat, Q=It, and the three power equations.
  • Check you have a calculator with working batteries and know how to use the exponent/squared button.
  • Remind yourself of the significant figures rule and to show substitution before rearranging.
  • Eat something and get to your seat with time to spare. Don't revise in the exam room queue: it raises stress without adding marks.
  • Once the paper starts, read every question fully before writing. Command words like 'calculate', 'explain' and 'describe' need different answer shapes.

Now test yourself

Knowing the equation is not the same as being able to use it. Practise exam-style Physics questions in PrepWise, get marked instantly, and drill the rearranging until it is automatic.

Practise Physics questions

Start the 3-day plan now

Open the Physics Knowledge Organisers, quiz every priority topic and walk in ready. Free during alpha.

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