If you are preparing for the West African Senior School Certificate Examination (WASSCE) and Physics is one of your subjects, then this guide is for you. This is the most comprehensive, up-to-date resource on WAEC past questions and answers for Physics available online, covering objective questions, theory (essay), and practical papers, with detailed explanations designed to help you score A1.
Whether you are a May/June school candidate or a GCE private candidate, studying WAEC Physics past questions is one of the smartest preparation strategies you can adopt. Examiners at the West African Examinations Council follow recurring patterns, and understanding those patterns is the difference between a credit and a distinction.
Let us break everything down, from the exam format, to topic-by-topic past questions with answers and explanations, to expert study tips that no other blog is sharing.
About the WAEC Physics Examination
The West African Examinations Council (WAEC) conducts the WASSCE for candidates across West Africa, including Nigeria, Ghana, Sierra Leone, The Gambia, and Liberia. Physics is a core subject for students in the Science track and is also a prerequisite for university admission into courses such as Engineering, Medicine, Computer Science, Architecture, and Pure Sciences.
The WAEC Physics paper tests candidates on their theoretical understanding, mathematical problem-solving ability, and hands-on experimental skills. It is structured across three papers that collectively test the full spectrum of what a secondary school Physics student should know.
Studying past questions gives you a strategic edge because WAEC examiners tend to revisit core concepts year after year. Topics like Newton’s Laws of Motion, Ohm’s Law, simple harmonic motion, and refraction of light have appeared in different forms across multiple exam years. Recognising these patterns and understanding how to respond to them is the foundation of smart WAEC Physics preparation.
WAEC Physics Exam Format and Mark Allocation
Understanding the structure of the WAEC Physics exam before sitting for it is absolutely critical. Here is the complete breakdown:
Paper 1 — Objective (Multiple Choice)
- Duration: 1 hour 15 minutes
- Number of Questions: 50 multiple-choice questions
- Marks: 50 marks
- Instruction: Each question has four options (A–D). Choose the most correct answer.
Paper 2 — Theory (Essay)
- Duration: 2 hours
- Marks: 60 marks
- Structure: Two parts:
- Part I (15 marks): Answer five questions out of seven.
- Part II (45 marks): Answer three questions out of five.
- Note: Questions require calculations, explanations, sketches, and graph interpretation.
Paper 3 — Practical
- Duration: 2 hours 45 minutes
- Marks: 50 marks
- Structure: Three experiments/questions covering mechanics, optics, and electricity.
- Weight: The practical paper accounts for approximately 25% of the total Physics grade.
Total Marks and Grading
The total mark for WAEC Physics is 160 marks (Papers 1, 2, and 3 combined). Grades are awarded as follows:
| Grade | Score Range | Description |
|---|---|---|
| A1 | 75% – 100% | Excellent |
| B2 | 70% – 74% | Very Good |
| B3 | 65% – 69% | Good |
| C4 | 60% – 64% | Credit |
| C5 | 55% – 59% | Credit |
| C6 | 50% – 54% | Credit |
| D7 | 45% – 49% | Pass |
| E8 | 40% – 44% | Pass |
| F9 | Below 40% | Fail |
Most Repeated Topics in WAEC Physics (1988–2024)
Based on a careful study of WAEC Physics past questions from 1988 to 2024, the following topics appear most frequently in both the objective and theory papers:
1. Mechanics (Highest Frequency)
- Newton’s Laws of Motion
- Projectile Motion and Range
- Conservation of Linear Momentum
- Work, Energy, and Power
- Simple Harmonic Motion (SHM)
- Circular Motion
2. Electricity and Magnetism (Second Highest Frequency)
- Ohm’s Law and Resistance
- Series and Parallel Circuits
- Capacitors (charging, discharging, capacitance)
- Electromagnetic Induction (Faraday’s and Lenz’s Laws)
- Transformers
- Moving-coil Galvanometer
3. Waves and Sound
- Wave Properties (frequency, wavelength, amplitude)
- Stationary Waves and Resonance
- Sound Waves (speed, echoes, Doppler effect)
- Vibration in Strings and Pipes
4. Optics (Light)
- Reflection (plane and curved mirrors)
- Refraction and Snell’s Law
- Total Internal Reflection and Critical Angle
- Lenses (converging and diverging)
- Dispersion of Light and the Spectrum
5. Heat and Thermodynamics
- Temperature and Thermometers
- Heat Transfer (conduction, convection, radiation)
- Specific Heat Capacity and Latent Heat
- Gas Laws (Boyle’s, Charles’, Pressure Law)
6. Modern Physics
- Radioactivity (Alpha, Beta, Gamma radiation)
- Half-life Calculations
- Photoelectric Effect
- Atomic Structure and Energy Levels
- X-rays and their Properties
7. Measurements
- Scalar and Vector Quantities
- Error and Uncertainty
- Significant Figures
- SI Units
WAEC Past Questions and Answers for Physics 2026
WAEC Physics Objective Past Questions with Answers + Explaination
Below is a carefully curated selection of WAEC Physics objective questions drawn from past papers, each with the correct answer and a detailed explanation to help you understand the concept, not just memorise the answer.
Question 1 (Mechanics – Motion) A car starts from rest and reaches a velocity of 20 ms⁻¹ in 5 seconds. What is its acceleration?
- A. 2 ms⁻²
- B. 4 ms⁻²
- C. 5 ms⁻²
- D. 10 ms⁻²
Correct Answer: B — 4 ms⁻²
Explanation: Use the formula: a = (v − u) / t Here, v = 20 ms⁻¹, u = 0 ms⁻¹ (starts from rest), t = 5 s a = (20 − 0) / 5 = 4 ms⁻²
Question 2 (Newton’s Laws – Momentum) A ball of mass 0.5 kg moving at 10 ms⁻¹ collides with another ball of equal mass at rest. If they move together after the impact, what is their common velocity?
- A. 2.5 ms⁻¹
- B. 5.0 ms⁻¹
- C. 7.5 ms⁻¹
- D. 10.0 ms⁻¹
Correct Answer: B — 5.0 ms⁻¹
Explanation: By the Law of Conservation of Linear Momentum: m₁u₁ + m₂u₂ = (m₁ + m₂)v (0.5 × 10) + (0.5 × 0) = (0.5 + 0.5) × v 5 = 1 × v → v = 5 ms⁻¹
Question 3 (Electricity – Ohm’s Law) A 10 Ω resistor is connected to a 12 V battery. What is the current flowing through the resistor?
- A. 0.83 A
- B. 1.2 A
- C. 2.0 A
- D. 120 A
Correct Answer: B — 1.2 A
Explanation: Using Ohm’s Law: V = IR → I = V/R I = 12/10 = 1.2 A
Question 4 (Lenz’s Law) The induced current in a coil always flows in a direction so as to oppose the change that causes it. This statement is known as:
- A. Coulomb’s Law
- B. Lenz’s Law
- C. Faraday’s Law
- D. Ampere’s Law
Correct Answer: B — Lenz’s Law
Explanation: Lenz’s Law is a consequence of the Law of Conservation of Energy. It states that the direction of an induced electromotive force (EMF) is always such that it opposes the cause that produced it. This is different from Faraday’s Law, which quantifies the magnitude of the EMF.
Question 5 (Waves – Frequency) A wave has a frequency of 500 Hz and a wavelength of 0.68 m. What is its speed?
- A. 68 ms⁻¹
- B. 136 ms⁻¹
- C. 340 ms⁻¹
- D. 500 ms⁻¹
Correct Answer: C — 340 ms⁻¹
Explanation: Wave speed = frequency × wavelength v = f × λ = 500 × 0.68 = 340 ms⁻¹ (This is the speed of sound in air at room temperature — a classic WAEC trap!)
Question 6 (Optics – Snell’s Law) A ray of light passes from air into glass. The angle of incidence is 60° and the angle of refraction is 35°. What is the refractive index of the glass?
- A. 1.38
- B. 1.52
- C. 1.63
- D. 1.73
Correct Answer: C — 1.63
Explanation: Using Snell’s Law: n = sin i / sin r n = sin 60° / sin 35° = 0.866 / 0.574 ≈ 1.51 (approximately 1.52 depending on rounding — always match your calculation to the closest option)
Question 7 (Heat – Gas Laws) A gas occupies a volume of 4.0 L at a pressure of 3.0 atm. If the pressure is reduced to 1.5 atm at constant temperature, what is the new volume?
- A. 2.0 L
- B. 4.0 L
- C. 6.0 L
- D. 8.0 L
Correct Answer: D — 8.0 L
Explanation: Using Boyle’s Law: P₁V₁ = P₂V₂ (3.0)(4.0) = (1.5)(V₂) V₂ = 12.0 / 1.5 = 8.0 L
Question 8 (Modern Physics – Radioactivity) A radioactive substance has a half-life of 20 years. What fraction of the original amount remains after 60 years?
- A. 1/2
- B. 1/4
- C. 1/6
- D. 1/8
Correct Answer: D — 1/8
Explanation: Number of half-lives = 60/20 = 3 After 3 half-lives: (1/2)³ = 1/8 remains
Question 9 (Energy – Work-Energy Theorem) A body of mass 2 kg is released from a point 100 m above the ground. Calculate its kinetic energy 80 m from the point of release. (g = 10 ms⁻²)
- A. 200 J
- B. 600 J
- C. 1,600 J
- D. 2,000 J
Correct Answer: C — 1,600 J
Explanation: The body has fallen 80 m (from 100 m to 20 m above ground). KE gained = loss in PE = mgh = 2 × 10 × 80 = 1,600 J
Question 10 (Circular Motion) An object moving in a circle at constant speed experiences:
- A. Zero acceleration
- B. Centripetal acceleration directed toward the centre
- C. Centrifugal acceleration directed outward
- D. Tangential acceleration
Correct Answer: B
Explanation: Although the speed is constant, the direction of velocity is continuously changing, meaning the object is accelerating. This acceleration is always directed toward the centre of the circle and is called centripetal acceleration. The centrifugal force is a fictitious force felt in a rotating frame of reference — not a real inward force.
WAEC Physics Theory Past Questions and Model Answers
The theory section of WAEC Physics requires candidates to explain concepts, derive equations, sketch diagrams, and solve multi-step problems. Here are model question-and-answer pairs styled after real WAEC theory papers.
Theory Question 1 — Projectile Motion (Essay Format)
(a) Define the horizontal range of a projectile.
(b) The horizontal range R of a projectile is given by R = u²sin2θ / g.
- (i) What does θ represent?
- (ii) For what value of θ is R maximum?
- (iii) A ball is kicked with an initial velocity of 25 ms⁻¹ at an angle of 30° to the horizontal. Calculate the range. (g = 10 ms⁻²)
Model Answer:
(a) The horizontal range of a projectile is the total horizontal distance covered by the projectile from its point of projection to the point where it returns to the same horizontal level.
(b)(i) θ is the angle of projection, i.e., the angle at which the projectile is launched relative to the horizontal.
(b)(ii) R is maximum when sin2θ = 1, which means 2θ = 90°, therefore θ = 45°.
(b)(iii) R = u²sin2θ / g R = (25)² × sin(2 × 30°) / 10 R = 625 × sin60° / 10 R = 625 × 0.866 / 10 R = 54.1 m
Theory Question 2 — Electricity and Resistance
(a) State Ohm’s Law.
(b) A circuit contains a 5 Ω, 10 Ω, and 15 Ω resistor connected in:
- (i) Series — find the total resistance and current if connected to a 30 V source.
- (ii) Parallel — find the total resistance.
(c) State two factors that affect the resistance of a conductor.
Model Answer:
(a) Ohm’s Law states that the current flowing through a metallic conductor is directly proportional to the potential difference across its ends, provided that the temperature and other physical conditions remain constant.
(b)(i) Series: Total resistance = 5 + 10 + 15 = 30 Ω Current I = V/R = 30/30 = 1 A
(b)(ii) Parallel: 1/Rₜ = 1/5 + 1/10 + 1/15 1/Rₜ = 6/30 + 3/30 + 2/30 = 11/30 Rₜ = 30/11 ≈ 2.73 Ω
(c) The two factors that affect resistance are:
- The length of the conductor (resistance increases with length)
- The cross-sectional area of the conductor (resistance decreases as area increases) (Temperature and the nature of the material are also acceptable answers)
Theory Question 3 — Heat and Gas Laws
(a) Explain the statement: “The specific latent heat of vaporisation of water is 2.26 × 10⁶ J kg⁻¹.”
(b) An electric heater of power 500 W is used to heat 2 kg of water from 25°C to 100°C, and then to convert it entirely to steam. Calculate:
- (i) The time taken to raise the temperature to 100°C
- (ii) The additional time needed to convert the water to steam [Specific heat capacity of water = 4,200 J kg⁻¹K⁻¹; Specific latent heat of vaporisation = 2.26 × 10⁶ J kg⁻¹]
Model Answer:
(a) This means that 2.26 × 10⁶ joules of energy must be supplied to completely convert 1 kilogram of water at its boiling point (100°C) into steam at the same temperature, without any change in temperature during the process.
(b)(i) Energy needed = mcΔT = 2 × 4200 × (100 − 25) = 2 × 4200 × 75 = 630,000 J Time = Energy/Power = 630,000 / 500 = 1,260 seconds (21 minutes)
(b)(ii) Energy for vaporisation = mL = 2 × 2.26 × 10⁶ = 4,520,000 J Time = 4,520,000 / 500 = 9,040 seconds (≈ 2.51 hours)
WAEC Physics Practical: What to Expect and How to Score Full Marks
Many candidates underestimate Paper 3 (the Practical), yet it accounts for a substantial portion of the final mark. Understanding what examiners are looking for can push your grade from a C6 to an A1.
What the Practical Paper Tests
The WAEC Physics Practical paper typically features three experiments drawn from:
- Mechanics: Simple pendulum, inclined planes, spring constant, moments of forces
- Electricity: Ohm’s Law verification, resistance measurement, circuit analysis
- Optics: Refraction through a glass block, focal length of a convex lens, plane mirror experiments
How to Present Practical Answers
Examiners award marks based on a specific marking scheme. Here is how to maximise your score:
- Tabulate your results clearly. Use properly labelled columns with correct SI units.
- Draw graphs carefully. Use a ruler, label axes, include units, plot all points, and draw the best-fit straight line (not a curve unless specified).
- State precautions explicitly. Precautions such as “I avoided parallax errors when reading the metre rule” or “I ensured the circuit was switched off between readings to prevent overheating” earn you dedicated marks.
- Show your calculations step by step. Write out the formula, substitute values with units, and box your final answer.
- Include sources of error. State at least two realistic sources of experimental error, such as friction, human reaction time, or parallax.
Sample Practical: Ohm’s Law Experiment
Aim: To verify Ohm’s Law by investigating the relationship between voltage and current in a resistor.
Apparatus: Dry cell, voltmeter, ammeter, rheostat (variable resistor), connecting wires, switch, known resistor.
Procedure:
- Connect the circuit as described (cell → switch → resistor → ammeter in series; voltmeter in parallel across the resistor).
- Close the switch and record the initial voltage (V) and current (I).
- Adjust the rheostat to obtain 5 different readings of V and I.
- Tabulate your results.
Sample Results Table:
| V (Volts) | I (Amperes) | R = V/I (Ohms) |
|---|---|---|
| 1.0 | 0.20 | 5.0 |
| 2.0 | 0.40 | 5.0 |
| 3.0 | 0.60 | 5.0 |
| 4.0 | 0.80 | 5.0 |
| 5.0 | 1.00 | 5.0 |
Conclusion: Since V/I = constant = 5.0 Ω, the current is directly proportional to the voltage, confirming Ohm’s Law. The resistance of the conductor is 5.0 Ω.
Precautions Taken:
- The circuit was switched off immediately after each reading to prevent heating the resistor, which could alter resistance.
- Parallax errors were avoided when reading the ammeter and voltmeter.
READ ALSO: WAEC Physics Practical Specimen 2026/2027
Topic-by-Topic Key Formulas for WAEC Physics
Below is a quick-reference formula sheet covering the most important Physics equations you must know for WAEC.
Mechanics
| Formula | Description |
|---|---|
| v = u + at | Velocity after time t |
| s = ut + ½at² | Distance covered |
| v² = u² + 2as | Velocity-distance relation |
| F = ma | Newton’s Second Law |
| p = mv | Linear momentum |
| KE = ½mv² | Kinetic energy |
| PE = mgh | Potential energy |
| W = Fs | Work done |
| P = W/t | Power |
| R = u²sin2θ / g | Projectile range |
Electricity
| Formula | Description |
|---|---|
| V = IR | Ohm’s Law |
| P = IV = I²R = V²/R | Electrical power |
| Q = CV | Charge on capacitor |
| E = QV/2 | Energy stored in capacitor |
| R_series = R₁ + R₂ + R₃ | Series resistance |
| 1/R_parallel = 1/R₁ + 1/R₂ | Parallel resistance |
Waves and Sound
| Formula | Description |
|---|---|
| v = fλ | Wave speed |
| T = 1/f | Period |
| v = 331 + 0.6T ms⁻¹ | Speed of sound at temperature T°C |
Heat
| Formula | Description |
|---|---|
| Q = mcΔT | Heat capacity |
| Q = mL | Latent heat |
| P₁V₁ = P₂V₂ | Boyle’s Law |
| V₁/T₁ = V₂/T₂ | Charles’ Law |
| P₁V₁/T₁ = P₂V₂/T₂ | Combined Gas Law |
Modern Physics
| Formula | Description |
|---|---|
| N = N₀(½)ⁿ | Radioactive decay |
| n = t / t½ | Number of half-lives |
| E = hf | Photon energy |
| E = mc² | Mass-energy equivalence |
How to Study WAEC Physics Past Questions Effectively
Knowing what to study is only half the battle. How you study determines your final grade. Here are expert-level study strategies specifically tailored for WAEC Physics:
1. Study by Topic, Not by Year
Instead of picking up a 2018 past paper and answering all 50 questions at once, study question by question based on topic. Gather all the past questions on “Projectile Motion” across 10 years, solve them together, compare patterns, and identify which formula variations WAEC uses. This builds deep conceptual mastery.
2. Understand Before You Memorise
WAEC Physics rewards understanding over memorisation. If you understand why v² = u² + 2as works (it’s derived from the definitions of acceleration and displacement), you can apply it even when the question is framed unusually. Candidates who only memorise formulas are caught off guard by calculation questions with unfamiliar variables.
3. Time Yourself Regularly
For Paper 1, you have 75 minutes for 50 questions — that’s 90 seconds per question. Practice under exam conditions to build speed. For Paper 2, allocate time per question and stick to it during practice.
4. Never Skip the Practical Paper
The practical paper is where consistent students separate themselves from cramming students. Attend every school practical lesson. If you are a private candidate, simulate experiments at home using common materials, and at minimum, study practical past questions thoroughly and learn how to present data tables, graphs, and precautions.
5. Use a Dedicated Formula Sheet
Create a one-page formula sheet by hand (writing reinforces memory) and review it every morning in the three weeks before your exam. Cover mechanics, electricity, waves, heat, and modern physics.
6. Focus on Calculation Accuracy
WAEC Physics theory questions award marks for each step of a calculation — the formula, substitution, working, and answer. Even if you get the final answer wrong, you can earn partial marks if your method is correct. Never skip steps.
7. Study the WAEC Physics Syllabus
The official WAEC Physics syllabus defines every topic that can appear in the exam. Download it from the WAEC website and cross-reference your textbook against it. If a topic is in the syllabus but not in your textbook chapter summaries, investigate it.
Common Mistakes WAEC Physics Candidates Make
Thousands of students who should have passed WAEC Physics end up with D7 or F9 because of avoidable errors. Here are the most common mistakes — and how to avoid them:
Mistake 1: Confusing Scalar and Vector Quantities Speed is scalar; velocity is vector. Distance is scalar; displacement is vector. WAEC regularly tests this distinction. Always check whether direction matters in a question.
Mistake 2: Using Wrong Units WAEC Physics uses SI units. If a question gives mass in grams, convert to kilograms before calculating. If temperature is in Celsius and you need Kelvin, add 273. These unit conversion errors cost easy marks.
Mistake 3: Misidentifying Circuit Types Many candidates struggle to tell whether resistors in a circuit diagram are in series or parallel. Practise circuit analysis by tracing current paths. If current has only one path, resistors are in series. If current splits into multiple paths, they are in parallel.
Mistake 4: Skipping Diagrams and Graphs In theory papers, many questions award marks specifically for correctly labelled diagrams (ray diagrams, circuit diagrams, force diagrams). Skipping these leaves free marks on the table.
Mistake 5: Ignoring Precautions in Practical Every Physics practical experiment has a section on precautions. Candidates who do not state specific, relevant precautions lose between 3 and 6 marks per experiment.
Mistake 6: Not Reading the Question Carefully WAEC often includes qualifiers like “calculate”, “state”, “explain”, “derive”, or “describe.” Each demands a different type of answer. Calculating when you should be explaining, or stating when you should be deriving, will cost you marks even if your physics is correct.
Mistake 7: Neglecting Modern Physics and Atomic Structure Many students focus only on mechanics and electricity and neglect the modern physics section. This is a mistake because radioactivity, atomic structure, and the photoelectric effect appear almost every year in both objective and theory papers.
Frequently Asked Questions (FAQs)
Q: Are WAEC Physics past questions enough to score A1?
Past questions are one of the most powerful tools available, but they are not sufficient on their own. Combine them with a thorough reading of your textbook (New School Physics by MA Anyakoha is the standard Nigerian reference), consistent practice of calculations, attendance at practical sessions, and revision of the WAEC syllabus.
Q: How many years of WAEC Physics past questions should I study?
Aim for at least the last 10 years (2015–2024). However, questions from as far back as the 1990s still appear in modified forms. Platforms like Myschool.ng host WAEC Physics questions from as far back as 1988.
Q: Is a calculator allowed in the WAEC Physics exam?
Yes. A non-programmable scientific calculator is permitted in the WAEC Physics examination. Programmable calculators and calculators with internet access are not allowed.
Q: How is the WAEC Physics practical marked?
The practical paper is marked by your school’s Physics teacher or an assigned WAEC assessor during the school-based assessment. Marks are awarded for: setting up the experiment (1–2 marks), tabulating results (3–5 marks), plotting graphs (5–7 marks), analysis and calculations (5–8 marks), precautions (2–3 marks), and a conclusion (1–2 marks).
Q: What is the best textbook for WAEC Physics in Nigeria?
The most widely recommended textbook is New School Physics by M.A. Anyakoha. Comprehensive Certificate Physics by Olumuyiwa Awe is also excellent, particularly for calculations and worked examples. For Ghana WAEC candidates, Physics for Senior High Schools by Wiredu is widely used.
Q: Can WAEC Physics be passed without attending practical classes?
Technically possible, but very difficult. The practical paper carries 50 marks (approximately 25% of the total). Candidates who study practical past questions thoroughly and understand how to present experimental data, draw graphs, and state precautions can perform well without hands-on experience, but attending practical classes provides an irreplaceable advantage.
Q: What is the difference between WAEC and WAEC GCE Physics?
WAEC (May/June) is for school candidates sitting the exam at the end of Senior Secondary School. WAEC GCE is for private candidates (those who have completed school but need to improve grades or write for the first time outside the school system). Both use the same syllabus, the same exam format, and similar past questions. GCE is typically written between October and November.
Conclusion
Passing WAEC Physics with an A1 is absolutely achievable, and the students who succeed are not always the most gifted — they are the most prepared. By studying WAEC past questions and answers for Physics systematically, understanding the patterns examiners follow, mastering key formulas, and practising practical experiments, you position yourself for the best possible result.
Use this guide as your central reference. Return to it as you progress through each topic. Share it with fellow candidates, because the best way to reinforce your own knowledge is to explain it to someone else.
The West African Examinations Council has been setting Physics questions for decades. The patterns are there. Study them. Understand them. Outperform them.
Related Articles You May Find Useful:
- WAEC Past Questions and Answers for Chemistry
- WAEC Biology Past Questions and Answers (Objectives and Theory)
- WAEC Mathematics Past Questions: The Ultimate Guide
- How to Pass WAEC in One Sitting 2026
- WAEC Physics Syllabus 2026: Full Breakdown and PDF Download
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