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Forces, vectors and resultants

Forces, vectors and resultants

Free-body diagrams of a book on a table, a box with a 12 N push and 5 N friction, and a falling ball at terminal velocity with forces labelled

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.

Newton’s laws Lesson

  1. GCSE
  2. /Physics
  3. /Newton’s laws

Step-by-step lessons covering OCR GCSE Physics Newton’s laws for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Foundation Tier) or Paper 3 and Paper 4 (Higher Tier) format. 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.

Lessons