Forces, vectors and resultants
Forces, vectors and resultants

A force is a push or pull caused by an interaction between objects, and it is measured in newtons, N. Force is a vector, so size and direction both matter.
Step-by-step lessons on OCR GCSE Physics Newton’s laws. Each one builds up to exam-style questions. Paper 2 and Paper 4 include synoptic questions that draw on Topics P1–P4, so revisit earlier topics before final exams rather than treating each paper as self-contained.