Calculating Speed (AQA GCSE Physics): Flashcards

Formula for speed (in words)

distance divided by time

Formula for speed (symbols)

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

Symbol for speed in formula

$v$

Symbol for time in formula

$t$

Symbol for distance

$s$ or $d$

Unit for distance

metres (m)

Unit for speed

metres per second (m/s)

Unit for time

seconds (s)

Average speed formula (words)

total distance divided by total time

Average speed formula

$\frac{\text{total distance}}{\text{total time}}$

Steps to find average speed

1. Work out total time and total distance 2. Use the formula