Physical

Name

Abbreviation 
Length 
meter 
m 
Mass 
kilogram 
kg 
Time 
second 
s 
Temperature 
kelvin 
K 
Amount of substance 
mole 
mol 
Electric current 
ampere 
A 
Luminous intensity 
candela 
cd 
Physical

Unit 
Symbol 
Definition 
Volume 
liter 
l 
1000 cm^{3} 
Temperature 
Celsius 
C 
K  273.16 
Temperature 
Fahrenheit 
F 

Heat 
joule 
J 
The work performed by a

Pressure 
Pascal 
Pa 
The force of 1 newton acting

Density 
g/cm^{3} 

The mass of 1 cm^{3} 
Prefix 
Symbol 
Meaning 
Exponential

exa 
E 
1,000,000,000,000,000,000 
10^{18} 
peta 
P 
1,000,000,000,000,000 
10^{15} 
tera 
T 
1,000,000,000,000 
10^{12} 
giga 
G 
1,000,000,000 
10^{9} 
mega 
M 
1,000,000 
10^{6} 
kilo 
k 
1,000 
10^{3} 
hecto 
h 
100 
10^{2} 
deka 
da 
10 
10^{1} 
1 
10^{0} 

deci 
d 
0.1 
10^{1} 
centi 
c 
0.01 
10^{2} 
milli 
m 
0.001 
10^{3} 
micro 
0.000001 
10^{6} 

nano 
n 
0.000000001 
10^{9} 
pico 
p 
0.000000000001 
10^{12} 
femto 
f 
0.000000000000001 
10^{15} 
atto 
a 
0.000000000000000001 
10^{18} 
12 in = 1 foot3 feet = 1 yard5280 ft = 1 mile 
4 quarts = 1 gallon2 pints = 1 quart 
16 ounces = 1 pound2000 lbs = 1 ton 
Sample significant figure problems:a) 123.49 Answerb) 0.0606 Answerc) 5600 Answerd) 511.600 Answer 
Report the result of the following calculations to the correct number of significant figures.a) 8.25 x 0.14 Answerb) 0.834/12.45 Answer 