How fast? How long?

Speed tells us how quickly something moves.

AVERAGE SPEED = DISTANCE ÷ TIME

100 m in 20 s

100 ÷ 20 = 5 m/s

That is an average of 5 metres each second.

VELOCITY includes direction.

Example: 5 m/s east.

ACCELERATION is a change in velocity over time.

Speeding up, slowing down and turning can all change velocity.