Practise the calculations: Forces and momentum
Exam-style practice on forces and free-body diagrams, Newton's laws, connected bodies, circular motion, momentum and impulse. Work on paper first, then type your final answer (the unit is already shown) and press Check. Answers within 2 % count, and so do answers rounded to 2 significant figures. You get two tries; then a worked solution appears in the IB 5-part layout (Given → Physics → Equation → Working → Answer, with ✔ [1] mark points). ↻ New numbers gives you the same exercise again with different data. Use g = 9.81 m s⁻². Your best score stays on this device only.
Practise with the simulations first:
Printable version (PDF) — the same exercises to do on paper.
Original IB-style exercises written for this course (many adapted from our problem sets with new numbers).