Speed =

- distance × time
- distance ÷ time
- time ÷ distance
- time - distance

The difference between speed and velocity is:

- velocity is speed in a given direction
- speed is velocity in a given direction
- speed is the gradient of the velocity time graph
- velocity is a more scientific word for speed.

The units for acceleration are

- metres second
- metres per second
- metres per second squared
- metres second squared

Acceleration =

- speed ÷ time
- time ÷ speed
- time ÷ change in speed
- change in speed ÷ time

Acceleration is:

- the area under the distance time graph
- the area under the velocity time graph
- the gradient of the distance time graph
- the gradient of the velocity time graph

Speed is:

- the area under the distance time graph
- the area under the velocity time graph
- the gradient of the distance time graph
- the gradient of the velocity time graph

Distance is:

- the area under the distance time graph
- the area under the velocity time graph
- the gradient of the distance time graph
- the gradient of the velocity time graph

A tachograph plots:

- an acceleration-time graph
- a speed time graph
- a velocity time graph
- a distance time graph

The gradient of a graph is

- rise ÷ run
- run ÷ rise
- rise × run
- run + rise

When working out acceleration from a gradient:

- only a small rise and run are needed to ensure accuracy.
- large rise and run are needed to ensure accuracy, but the units are not important.
- large rise and run are needed to ensure accuracy, and the correct units are important.
- the area and units are important