A student carries out an experiment to investigate how the angle of a ramp affects the acceleration of a toy car sliding down it.
Give two ways that the student can improve the quality of their data other than ignoring anomalous results.
53 exam-style questions on Edexcel GCSE Physics 2.2 Speed, velocity and acceleration, covering 2.2.1 Speed and distance–time graphs, 2.2.2 Acceleration and the uniform-acceleration equation, 2.2.3 Velocity–time graphs, and 2.2.4 Measuring speed, typical speeds and free-fall acceleration. Each one has a worked solution and a mark scheme showing where the marks go.