A car drives all the way round a roundabout at a constant speed of 10 m/s.
Which statement about the car is correct?
Its speed and its velocity both stay constant
Its velocity stays constant, but its speed changes
Its speed and its velocity both keep changing
Its speed stays constant, but its velocity changes
43 exam-style questions on OCR GCSE Physics 2.1 Motion, covering 2.1.1 Measuring distance and time, 2.1.2 Measuring speed, 2.1.3 Ratios, units and rates in motion, 2.1.4 Scalars and vectors in motion, 2.1.5 Distance-time and velocity-time graphs, 2.1.6 Area under a velocity-time graph, 2.1.7 Average speed for non-uniform motion, and 2.1.8 Uniform motion and uniform acceleration. Each one has a worked solution and a mark scheme showing where the marks go.