Students are investigating the acceleration due to gravity by dropping a steel sphere from a height of 1.5 m and measuring the fall time, ttt, using a handheld manual stopwatch.
Their measured values for t t\,t are consistently larger than the calculated theoretical value.
Suggest one improvement the students could make to their apparatus or procedure so that their measured value for t t\,t is closer to the calculated value.
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.