{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Metric System

# Metric System - Conversion Factors and Dimensional Analysis...

This preview shows pages 1–2. Sign up to view the full content.

Conversion Factors and Dimensional Analysis Many times the need arises to change the units of a quantity or measurement to different units. The new units may be in the same measurement system as the old ones (meters to kilometers) or they may be in a different system (meters to inches, or minutes to hours). Conversion Factor : an equality, expressed in fractional form, that is used as a multiplier to convert a quantity in one unit to a quantity in another unit. Dimensional Analysis : the mathematical tool used to change units. Unit conversion is accomplished by multiplying a given quantity or measurement by one or more conversion factors. Given quantity x conversion factors(s) = desired quantity Notes on conversion factors: 1. Multiplication by one or more conversion factors does not change the value of a measurement or quantity because all conversion factors have a numerical value equal to one. Multiplication by the number one does not change the value of an expression. 2. A fixed relationship between two quantities allows one to construct a pair of conversion factors. From the relationship: 1 minute = 60 seconds we obtain the following pair of conversion factors: (a) minute 1 seconds 60 (b) seconds 60 minute 1 The first conversion factor (a) is used to convert minutes into seconds.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 7

Metric System - Conversion Factors and Dimensional Analysis...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online