Definitions
An exact quantity that people agree to use to compare measurements.
Standard
5 km = ? m
5000 m
m
meter
length
meter
The distance between two points.
Length
160 cm = ? mm
1600 mm
g
gram
mass
gram
The measurement of the quantity of matter in an object.
Mass
109 g = ? kg
.109 kg
s
second
time
second
The amount of space an object fills.
Volume
99 g = ? kg
.099 kg
K
kelvin
temperature
Celsius or kelvin
The mass per unit volume of a material.
Density
59 cm = ? mm
590 mm
mol
mole
electric current
ampere