Speed Flashcards – AQA GCSE Combined Science: Trilogy (8464) — Physics — Higher

How is constant speed $v$ calculated from distance travelled $s$ and time taken $t$?

$v = \frac{s}{t}$

What is one unit in which speed can be expressed?

Metres per second ($\mathrm{m/s}$).

How is average speed calculated for a journey with varying speed?

$\text{Average speed} = \frac{\text{total distance travelled}}{\text{total time taken}}$

Does the total time used to calculate average speed include time spent at rest?

Yes, time spent at rest is included.