Elements
H
Hyrdogen
as one quantity goes up, the other quantity goes down. If that initial quantity goes down, the other goes up
inversely proportional
square meter
area
round to 3 sig figs (67.029)
67.0
0.0006730
6.7 x 10-4
He
Helium
as one quantity goes up in value, the quantity in comparison also goes up. If it goes down, the other goes down too
directly proportional
cubic meter
volume
round to one sig fig (0.15)
0.2
50000
5.0 x 104
Ca
Calcium
amount of space an object takes up
volume
density unit
kilograms per cubic meter
round to five sig figs (52.8005)
52.801
0.000003010
3.0 x 10-6
Ag
Gold
closeness of a set of measurements of the same quantity made in the same way
precision
something that has magnitude, size or an amount
round to three sig figs (3.17497)
3.17
7.050 x 103
7050
W
Tungsten
closeness of a set of measurements to the correct or accepted value of the quantity measured
accuracy
meter, gram, second, kelvin, mole
base units
round to 2 sig figs (1,320,000)
1.3 x 106 or 1,300,000
2.3500 x 104
23500