Two stationary magnets, P and Q, repel. P exerts a force of 0.60 N to the right on Q. A student draws this force as an arrow of length 3.0 cm. Using the same scale, how should the force exerted by Q on P be represented?
A 3.0 cm3.0\ \mathrm{cm}3.0 cm arrow on Q pointing left
A 1.5 cm1.5\ \mathrm{cm}1.5 cm arrow on P pointing right
A 6.0 cm6.0\ \mathrm{cm}6.0 cm arrow on Q pointing right
A 3.0 cm3.0\ \mathrm{cm}3.0 cm arrow on P pointing left
93 exam-style questions on Edexcel GCSE Physics 9.1 Forces and vectors, covering 9.1.1 Interactions and types of force, 9.1.2 Vector and scalar quantities, and 9.1.3 Vector diagrams and free body diagrams. Each one has a worked solution and a mark scheme showing where the marks go.