Physics revision notes

WAEC and JAMB · SS2 and SS3 · 10 topics

Every topic below is written for the WAEC and JAMB syllabus: what you need to know, the key terms, a worked example with the steps shown, and the mistake that costs candidates the mark.

• Measurement, Units, Dimensions and Vectors Every other topic in Physics is built on this one: if your units are wrong the whole answer is wrong, even…
• Motion, Equations of Motion and Projectiles Motion carries the heaviest calculation load in Paper 2 and appears every year, usually as a velocity-time…
• Newton's Laws, Momentum, Impulse and Friction This topic supplies the reasoning behind almost every mechanics calculation, and WAEC examines it as a pair:…
• Work, Energy, Power and Simple Machines This topic rewards candidates who keep their units straight, since work is in joules, power in watts and…
• Properties of Matter and Fluids at Rest This topic links the particulate nature of matter to the measurable behaviour of solids and liquids, and it…
• Heat: Expansion, Capacity, Gas Laws, Transfer Heat questions carry easy marks because the formulae are few and the arithmetic is direct, yet candidates…
• Waves, Sound and the Electromagnetic Spectrum Waves tie together sound, light and radio in one set of relationships, and v = f times lambda is examined…
• Light: reflection, refraction and lenses Geometrical optics is the most drawing-heavy topic in the syllabus and a ray diagram earns marks on its own…
• Current Electricity, Ohm's Law and Energy Cost Electricity is the highest-scoring topic for a prepared candidate because the questions are formulaic:…
• Electromagnetism, the Atom and Radioactivity This topic closes the syllabus and supplies the transformer and half-life calculations that appear almost…