GCSE · A-Level · UK
UK GCSE & A-Level Maths, Physics & Chemistry AI Tutor
Photograph a past-paper or textbook question and get a narrated whiteboard video that shows the full working — the way examiners want to see it — plus written steps and revision notes.
Mark schemes tell you what the answer is, but not always how to get there. When you are working through past papers on your own, one confusing question can stall a whole evening of revision.
Doubtclip explains each question step by step, showing every line of working so you can see where method marks come from. Topics follow the content that is common across the main UK exam boards’ specifications, so it is useful whichever board your school uses. Doubtclip is an independent study tool and is not affiliated with or endorsed by any exam board.
Who it is for
GCSE & IGCSE students
Foundation and Higher tier Maths, Combined or Triple Science — Physics and Chemistry.
A-Level students
Pure Maths, Mechanics and Statistics, A-Level Physics and A-Level Chemistry, including the harder multi-step questions.
Students revising independently
Working through past papers at home and needing a clear explanation when the mark scheme is too brief.
International students
Following UK-style curricula overseas, with explanations available in English and Hinglish.
How it works
Step 1
Snap, upload or paste
Photograph the question from a past paper, textbook or worksheet, or paste the text. Diagrams, graphs and apparatus drawings come along with the image.
Step 2
AI works through it on your diagram
Doubtclip shows the full working on a whiteboard — labelling the forces, axes or structures on the figure from your question, and stating units and significant figures as you would in the exam.
Step 3
Watch the video, keep the steps
You get a narrated whiteboard video, a written step-by-step solution you can check line by line, and PDF notes to revise from later.
Topics students practise
Maths — algebra & graphs
Simultaneous equations, quadratics, inequalities, sequences and transformations of graphs.
Maths — geometry & trigonometry
Circle theorems, Pythagoras, sine and cosine rules, vectors.
A-Level Pure
Differentiation, integration, trig identities, logarithms, proof and series.
Mechanics & Statistics
SUVAT, forces and moments, projectiles, probability, distributions and hypothesis testing.
Physics — forces & motion
Newton’s laws, momentum, energy, work and power, circular motion.
Physics — electricity & fields
Circuits, potential dividers, electric and gravitational fields, capacitors.
Physics — waves & particles
Refraction, interference, the photoelectric effect and radioactivity.
Chemistry — quantitative
Moles, concentration, titration calculations, percentage yield and atom economy.
Chemistry — physical & organic
Energetics, rates, equilibria, Kp/Kc, mechanisms and functional groups.
Sample question walkthrough
GCSE / A-Level Physics style · Kinematics
A car accelerates uniformly from 12 m/s to 28 m/s over a distance of 160 m. Calculate (a) the acceleration and (b) the time taken.
- List the SUVAT values: s = 160 m, u = 12 m/s, v = 28 m/s, a = ?, t = ?
- (a) Use v² = u² + 2as, because it does not involve t: 28² = 12² + 2 × a × 160.
- 784 = 144 + 320a, so 320a = 640 and a = 2.0 m/s².
- (b) Use v = u + at: 28 = 12 + 2.0t, so t = 16 / 2.0 = 8.0 s.
- Check with s = ½(u + v)t = ½(12 + 28)(8.0) = 160 m ✓
Answer: (a) a = 2.0 m/s² (b) t = 8.0 s
The video explains how to choose the SUVAT equation by spotting the missing variable — a habit that earns method marks even if you slip on the arithmetic.
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FAQ
Does it follow my exam board’s specification?
It covers the content that is shared across the main UK specifications for GCSE and A-Level Maths, Physics and Chemistry. Where boards differ — for example on required practicals or formula sheets — check the detail against your own specification. Doubtclip is not affiliated with any exam board.
Can I use it for past-paper questions?
Yes. Photograph the question, including any diagram, and you will get the full working. It is a good way to understand a question after you have attempted it and checked the mark scheme.
Does it show working the way examiners expect?
Explanations write out the formula, substitution, answer and unit, and round sensibly — the structure that earns method marks in calculation questions.
Does it help with six-mark and extended-response questions?
It explains the underlying science and gives a model structure for the answer. Use it to understand the ideas, then practise writing your own response in your own words.
Is Doubtclip free?
New accounts get a free trial with a few doubt videos. After that, paid plans are available — see the pricing page. The calculators linked on this page are free.
Keep exploring
Revise smarter with worked videos
Photograph a past-paper question — get the full working on a whiteboard, with notes to revise from.
AQA, Edexcel (Pearson) and OCR are exam boards in England. Doubtclip is an independent study tool and is not affiliated with, or endorsed by, any exam board.