Mechanics
Use this page to review the core ideas, then practise with your lecture questions, tutorials and past papers.
Core ideas
- Kinematics describes motion using displacement, velocity and acceleration.
- Newton's laws relate forces to motion.
- Work transfers energy through a force acting over displacement.
- Momentum is conserved in an isolated system.
- Angular motion uses rotational analogues of linear quantities.
Practice checklist
- Draw a free-body diagram.
- Choose a sign convention and keep it throughout.
- Write the governing equation before substituting numbers.
- Check units and limiting behaviour.