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IGCSE Physics (0625) Paper 4 Mock: Motion, Forces, Energy, Electricity, Waves, Heat
TUTORZONE ORIGINAL MOCK PAPER · CAMBRIDGE IGCSE PHYSICS (0625) PAPER 4 (THEORY EXTENDED)
Written to the Cambridge 0625 syllabus (2026-2028): Extended candidates sit Paper 2 (multiple choice, 40 marks), Paper 4 (theory, 80 marks, 1 h 15 min, short-answer and structured) and Paper 5/6 (practical, 40 marks). This is a Paper 4 mock: 10 structured questions for 80 marks with worked answers (g = 10 N/kg).
What is in the IGCSE Physics (0625) exam?
Direct answer: Extended candidates sit three papers: Paper 2 (multiple choice, 40 marks, 45 min), Paper 4 (theory, 80 marks, 1 h 15 min, short-answer and structured) and Paper 5 or 6 (practical, 40 marks).
Assessment at a glance (2027)
| Component | Content | Weighting | Duration |
|---|---|---|---|
| Paper 4 (Theory, Extended) | Short-answer and structured, 80 marks | 80 marks | 1 h 15 min |
| Paper 2 (Multiple Choice, Extended) | 40 four-choice items, 40 marks | 40 marks | 45 min |
| Paper 6 (Alternative to Practical) | Practical-skills questions, 40 marks | 40 marks | 1 h |
Ten questions in 1 h 15 min is about 7 minutes each. In a structured question write the formula first (e.g. F = ma), then substitute, then give the unit – all three steps carry marks.
How this paper was built
This is a TutorZone original mock paper: the questions follow the Cambridge 0625 structure (Paper 4 theory, 80 marks, 1 h 15 min) and the answers are our own computations, not Cambridge past papers or marking references.
Every answer was recomputed programmatically; g = 10 N/kg as the syllabus uses.
Pacing
| Section | Marks | Suggested time | What to do first |
|---|---|---|---|
| Paper 4 (Theory, Extended) | 80 marks | about 7 min per question, 5 to check | write the formula first, then substitute |
| Paper 2 (Multiple Choice, Extended) | 40 marks | about 1 min per item | eliminate the clearly wrong options |
| Paper 6 (Alternative to Practical) | 40 marks | read data, plot, analyse | accurate recording and graphing |
How do I gain marks on structured questions?
Direct answer: three steps – write the formula (e.g. F = ma), substitute, then give the answer with its unit. All three carry marks.
Paper 4: structured questions (10 questions, 80 marks)
All compulsory; aim for 70 minutes with 5 to check. Give the formula then substitute.
Question 1 (8 marks)
A train accelerates uniformly from 5 m/s at 2 m/s^2 for 4 s. Calculate the final velocity.
Question 2 (8 marks)
A 10 kg object accelerates at 3 m/s^2. Calculate the resultant force.
Question 3 (8 marks)
A 2 kg object moves at 6 m/s. Calculate its momentum.
Question 4 (8 marks)
A 4 kg object moves at 5 m/s. Calculate its kinetic energy.
Question 5 (8 marks)
A 3 kg object is raised 2 m (g = 10 N/kg). Calculate the gain in gravitational potential energy.
Question 6 (8 marks)
A current of 2 A flows through a 6 Ω resistor. Calculate the voltage across it.
Question 7 (8 marks)
An appliance draws 3 A at 12 V. Calculate its power.
Question 8 (8 marks)
A wave has frequency 50 Hz and wavelength 0.4 m. Calculate the wave speed.
Question 9 (8 marks)
0.5 kg of water (specific heat capacity 4200 J/(kg °C)) rises 10 °C in temperature. Calculate the energy needed.
Question 10 (8 marks)
An object has mass 100 g and volume 20 cm^3. Calculate its density.
What value of g is used?
Direct answer: g = 10 N/kg, as the Cambridge syllabus uses.
Paper 4 worked answers
Question 1
Use v = u + at (2): v = 5 + 2 x 4 = 13 m/s (6).
Question 2
Use F = ma (2): F = 10 x 3 = 30 N (6).
Question 3
Use p = mv (2): p = 2 x 6 = 12 kg m/s (6).
Question 4
Use KE = 1/2 mv^2 (2): KE = 1/2 x 4 x 5^2 = 50 J (6).
Question 5
Use GPE = mgh (2): GPE = 3 x 10 x 2 = 60 J (6).
Question 6
Use V = IR (2): V = 2 x 6 = 12 V (6).
Question 7
Use P = IV (2): P = 3 x 12 = 36 W (6).
Question 8
Use v = f lambda (2): v = 50 x 0.4 = 20 m/s (6).
Question 9
Use Q = mc delta-T (2): Q = 0.5 x 4200 x 10 = 21000 J (6).
Question 10
Use rho = m/V (2): rho = 100 / 20 = 5 g/cm^3 (6).
Which topics does this paper cover?
Direct answer: motion (v = u + at), force (F = ma), momentum, energy (KE, GPE), electricity (V = IR, P = IV), waves (v = f lambda), heat (Q = mc delta-T) and density (rho = m/V).
Where these marks are usually lost
| Mistake | What it looks like | What it costs | Instead |
|---|---|---|---|
| Missing formula | Jumping to the number | The formula carries 2 marks | Write v = u + at, F = ma first |
| Missing unit | 13 with no m/s | The unit is part of the answer | Write 13 m/s |
| Swapped substitution | Mixing m and V | Density is mass over volume | rho = m/V, not V/m |
How to use this paper
First sit: the full 1 h 15 min on all 10 questions with no references.
Mark it: check the formula, substitution and unit in every question.
Second sit: redo three to seven days later, aiming to finish inside 1 hour.
What should I do after finishing this paper?
Direct answer: log questions where the formula or unit was missed; redo in three to seven days; and drill Paper 2 multiple choice and Paper 6 practical skills.
FAQ
Is this a Cambridge paper?
No. The questions and answers are TutorZone originals, not Cambridge past papers or marking references.
How many papers does IGCSE Physics have?
Extended candidates sit three: Paper 2 (MC 40), Paper 4 (theory 80) and Paper 5 or 6 (practical 40).
What value of g is used?
g = 10 N/kg, as the syllabus uses.
Official references
| Resource | What to check |
|---|---|
| Cambridge IGCSE Physics 0625 syllabus (2026-2028) | Confirm the Paper 2/4/6 marks and times |
| https://www.tutorzone.com.hk/en-ib-math-ai-sl-mock-paper/ | IB Maths AI SL mock |
Related: practice area · IB Maths AI SL mock · IGCSE Physics Paper 6 drilling mock · IGCSE English 0500 mock
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