Speed
100

What is the standard unit of distance in science?

metre

200

What is the standard unit of time in science

second

300

What is the standard unit of speed in science

m/s

400

A car travels at 50 km/h. What does 50 km/h mean?

It travels a distance of 50 km every hour

500

A bus travels at 120 km in a time of 40 s. Find the average speed

Speed=Distance/Time

Speed=120/40

Speed=3m/s