Convert Units Using Conversion Factor

What is a conversion factor?

• Rates that have the same unit rate

  6 miles in 3 hours and 4 miles in 2 hours

• Two ratios that describe the same relationship

  2 : 3 and 4 : 6

• A rate that equals 1; A conversion factor is used to convert units.

  1 mile = 5280 feet

• A decimal system of measurement, based on powers of 10, that contains units for length, capacity, and mass

  centimeter, meter, liter, kilogram

The process of multiplying by ratios of 1 (conversion factors) and cancelling units to convert from one measure to another.

• unit analysis

• conversion factors

• ratio tables

• equivalent ratios

How many inches are in 1 mile?

• 66330in

• 63360in

• 63660in

• 63066in

In order to convert from \(\frac{km}{h}\) to \(\frac{m}{s}\), which of the following conversion factors can be used as one step of the conversion?

What conversion factor would be used to convert 3.2 km into miles?

What conversion factor would be used to convert 12 feet into inches?

What conversion factor would be used to convert 12 feet into inches?

What conversion factor would be used to convert 3.2 km into miles?

In order to convert from \(\frac{km}{h}\) to \(\frac{m}{s}\), which of the following conversion factors can be used as one step of the conversion?

A multiplier used to convert one measurement to an equivalent measurement in different units.

• rate

• unit rate

• conversion factor

• ratio