Where the weight sits
Across past papers, mechanics and electricity between them account for a large share of the questions. Waves and optics follow, then heat and thermodynamics, then modern physics. Fields and gravitation appear regularly but in smaller numbers.
Candidates who start their revision at the end of the syllabus, with atomic and nuclear physics, are optimising for the smallest section of the paper.
Everything here sits inside the official JAMB Physics syllabus, which changes very little from year to year, so there is no need to wait for the 2027 edition before you start. What is confirmed for 2027 so far is in our JAMB 2027 update.
Mechanics: the block that repays most
- Motion: the equations of uniformly accelerated motion, and projectiles.
- Newton's laws, friction, and problems on inclined planes.
- Momentum and collisions, including conservation.
- Work, energy and power, and the conversion between them.
- Moments, equilibrium and centre of gravity.
Electricity: the other block
- Ohm's law and resistors in series and parallel.
- Electrical energy and power, and cost-of-electricity questions.
- Electromagnetic induction and the transformer relationships.
- Electrostatics and capacitance, at a basic level.
Formulas you should not be deriving in the exam
There is a set of relationships you should be able to write down without thinking: the equations of motion, F = ma, momentum and impulse, the work-energy relationships, Ohm's law and power, the wave equation v = fλ, the lens and mirror formula, the gas laws, and the transformer ratios. Deriving any of these under time is a luxury you cannot afford, and a formula you half-remember is worse than one you drilled.
Units: the quiet destroyer
A large share of wrong answers in Physics are correct methods with a unit error — centimetres left unconverted, grams treated as kilograms, milliamps as amps. Convert everything to SI units as the very first step of every calculation, before you touch the formula. It feels slow and it is faster.
Practise the arithmetic, not just the physics
Without a calculator, the limiting factor is often computation rather than understanding. When you review a wrong answer, check whether you actually failed the physics or simply failed the multiplication. Those are different problems, and the second one is fixed by drilling, not by re-reading the chapter.
Questions people ask
Which JAMB Physics topics carry the most weight?
Mechanics and electricity between them account for a large share of the questions. Waves and optics follow, then heat and thermodynamics, then modern physics. Candidates who start revising at the end of the syllabus, with atomic and nuclear physics, are optimising for the smallest section of the paper.
Which formulas should I know without thinking?
The equations of motion, F = ma, momentum and impulse, the work-energy relationships, Ohm's law and power, the wave equation v = fλ, the lens and mirror formula, the gas laws, and the transformer ratios. Deriving any of these under time is a luxury you cannot afford.
Why do I keep getting Physics questions wrong despite knowing the method?
Units. A large share of wrong answers are correct methods with a unit error: centimetres left unconverted, grams treated as kilograms, milliamps as amps. Convert everything to SI units as the first step of every calculation, before you touch the formula.
Do I need to practise arithmetic for Physics?
Yes. Without a calculator, the limiting factor is often computation rather than understanding. When you review a wrong answer, check whether you failed the physics or simply failed the multiplication, because the second is fixed by drilling rather than by re-reading the chapter.
Practise this, don't just read it. Physics questions are formula recall plus fast arithmetic, and both improve with reps. JAMBUDDY gives you timed mocks and 20,000+ real past questions inside Telegram, free for 14 days. Open @jamb_buddy_bot.