Unit conversion
Example of a unit conversion:
Michael Johnson ran 200 m in 19.32 seconds when he set
the world record for that distance. Express his average speed in km per hour.
| Average speed |
= |
| distance
|  |
| time
|
|
= |
| 200 m
| |
| 19.32 s
|
|
= |
10.35 m/s |
| 10.35 m/s |
x |
| 1 km
| |
| 1000 m
|
|
x |
| 3600 s
| |
| 1 hr
|
|
= |
10.35 x 3.6 = 37.27 km/hr |
For the non-metric types, this is over 23 mph!
Squaring, cubing, etc.
If 100 cm = 1 m, how many cm2 = 1 m2?
How many cubic cm are in 1 cubic meter?
If you filled 1 cubic meter with water, what mass of water would you have?