The table describes four straight sections on velocity–time graphs. All velocities are in the same direction.
| Section | Initial velocity in m/s\mathrm{m/s}m/s | Final velocity in m/s\mathrm{m/s}m/s | Time taken in s\mathrm{s}s |
|---|---|---|---|
| P | 4.0 | 10 | 3.0 |
| Q | 3.0 | 15 | 8.0 |
| R | 8.0 | 20 | 4.0 |
| S | 0 | 15 | 6.0 |
Which section has the greatest positive gradient?
Section P
Section Q
Section S
Section R
96 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.