Free interactive math game: Speed Conversion — km/h ↔ m/s. Part of the Units & Time category on MathKite.
Taken from the generator that powers this exercise. A fresh set appears every time the page is opened, and the printable worksheet holds ten of them.
Converting speeds between kilometers per hour and meters per second.
One km/h is 1000 meters spread over 3600 seconds, so divide by 3.6 to reach m/s and multiply by 3.6 to come back.
72 km/h is 72 : 3.6 = 20 m/s.
Converting only the distance. Both the distance unit and the time unit change, which is where the 3.6 comes from.