Electricity
Current, potential difference and resistance are abstract, and series and parallel rules are easy to confuse. Draw every circuit, label what you know, and apply one rule at a time.
Forces and motion
Interpreting distance-time and velocity-time graphs, and applying Newton's laws in context, trips up many students. Practise describing in words what a graph shows before doing any calculation.
Equations and rearranging
A large share of marks depends on selecting, rearranging and substituting into equations with correct units. Build a personal equation sheet and test yourself on it weekly.
Extended answers
Six-mark questions reward a logical sequence of linked points. Plan three or four bullet points before writing, and use the scientific vocabulary from the specification.