2.4 Units and Conversions
Table of Contents
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The Metric System and SI Units
| SI Units | ||
|---|---|---|
| Length | m | meter |
| Mass | kg | kilogram |
| Time | s | second |
| Temperature | K | Kelvin (K = oC + 273) |
| Amount of substance | mole | mole |
| Electric Current | A | Ampere (Amp) |
| Luminous intensity | cd | candela |
| Derived Units | ||
| Volume | m3 | cubic meter |
| Energy / work | J | Joule |
| Pressure | Pa | Pascal |
| Metric Prefixes | |
|---|---|
| Peta | 1015 |
| Terra | 1012 |
| Giga | 109 |
| Mega | 106 |
| kilo | 103 |
| centi | 10-2 |
| milli | 10-3 |
| μicro | 10-6 |
| nano | 10-9 |
| pico | 10-12 |
| femto | 10-15 |
| atto | 10-18 |
(All the conversions below are the examples covered in the video lesson at the top of the page.)
Conversions
Convert 84 inches to feet
Convert 1500m to km
Convert 0.34km to mm
Convert 2.5 feet to inches
Convert 32.1km to m
Convert 0.245 L to mL
Area and Volume
Convert 1200cm2 to m2
Convert 1200cm3 to m3
Conversions Involving U.S. and Metric Units
Convert 0.75 ft to cm (1 in = 2.54 cm)
Convert 55 kilometers per hour to meters per second
Density Calculations (d = m/v)
A cube with 2.00cm edges weighs 10.0 grams. What is its density? How much would a cube of the same substance with 5.00cm edges weigh?