Study Guide: Measurements
Terms To Understand
| Term | Type | Description |
|---|---|---|
| Unit | A unit is any measurement that equals 1, such as 1 inch, 1 pound, one gallon, 1 mile/hour, etc. | |
| Length | ||
| Area | ||
| Volume | ||
| Weight | ||
| Time | ||
| Conversion Factor | ||
| International (or Metric) System | International measurement system based on multiple s of 10. Used as the standard measurement almost everywhere. | |
| US Standard System | Measurement system adapted from the older English (Imperial) system. Used only in the US and a few of it's colonies. | |
| Inches | Length | |
| Feet | Length | |
| Yards | Length | |
| Miles | Length | |
| Fluid Ounces | Liquid Volume | |
| Cups | Liquid Volume | |
| Pints | Liquid Volume | |
| Quarts | Liquid Volume | |
| Gallons | Liquid Volume | |
| Ounces | Volume | |
| Pounds | Volume | |
| Tons | Volume | |
| Newtons |
Large and Small Numbers
\begin{array}{lrll} \hline \textbf{Name} & \textbf{Value} & \textbf{Prefix} & \textbf{Symbol} \\ \hline trillion &1,000,000,000,000 & tera & T \\ billion &1,000,000,000 & giga & G \\ million &1,000,000 & mega & M \\ thousand &1,000 & kilo & k \\ hundred &100 & hecto & h \\ ten &10 & deka & da \\ unit &1 & & \\ tenth &0.1 & deci & d \\ hundredth &0.01 & centi & c \\ thousandth &0.001 & milli & m \\ millionth &0.000,001 & micro & µ \\ billionth &0.000,000,001 & nano & n \\ trillionth &0.000,000,000,001 & pico & p \\ \hline \end{array}
US Standard System Equivalent Lengths
| Inches | Feet | Yards | Miles |
|---|---|---|---|
| 12 | 1 | 1/3 | |
| 36 | 3 | 1 | |
| 63,360 | 5,280 | 1,760 | 1 |
Conversion Factors
12 Inches = 1 Foot
3 Feet = 1 Yard
1 Foot = 0.3048 m
Liquid Volume
16 Cups = 8 Pints = 4 Quart = 1 Gallon
Mass and Weight
1 Pound = 16 Ounces
1 Ton = 2000 Pounds = 32,000 Ounces
Temperature
\begin{array}{rrrr} \hline & &\textbf{Fahranheit} &\textbf{Celsius} &\textbf{kelvin} \\ \hline &\text{Absolute zero} & & &0 k \\ &\text{Water freezes} &-32° F &0° C &273.15 k \\ &\text{Human body} &98° F &36.85° C &310 k \\ &\text{Water boils} &212° F &100° C \\ \hline \end{array}
SI Metric System
The metric system is an international system of measurement. It has three main units:
| Unit | Symbol | Measures |
|---|---|---|
| Meter | m | length |
| Gram | g | mass (or weight) |
| Second | s | time |