14. Common Unit Conversions
1 centimeter (cm)
1 kilometer (km)
1 meter (m)
=
=
=
10 millimeters (mm)
100 centimeters (cm)
1 000 meters (m)
15.
16. • Time - can be measured
in a variety of ways,
usually with a watch or a
clock. Time can be
measured in seconds (s),
minutes (m), hours (h),
days, weeks, etc.
17. Common Unit Conversions of Time
1 hour
1 day
1 minute
=
=
=
60 minutes
60 seconds
24 hours
1 week
1 year
=
=
7 days
12 months
18. • Speed meters per second (m/s)
kilometers per hour (km/hr kph).
s = d / t
19. Example:
4 hours 284 kilometers
What was his speed?
s = d / t
= 284 km / 4 hours
= 71 km/hr
distance = 284 km
time = 4 hours