Converting Measurements Between Systems

Factor:

a number used to change one set of units to another, by multiplying or dividing

• Conversions

• Chemistry

• Physics

• Systemtic

Which is the first step in converting Units

• Start with the original measurement including units and create a fraction.

• Find the relationship between the original unit and the new unit.

• Make the relationship into a fraction with the new unit on top and the original unit on the bottom. (This is the Conversion Factor)

• Multiply the original measurement by the conversion factor.

• Cancel the original units.

If a person is 88 inches tall, how tall are they in meters? Remember 1 in = 2.54 cm and 100 cm = 1 m.

• 2.23 m tall

• 223 m tall

• 0.88 m tall

• 254 m tall

A sulcata tortoise can grow as big as 30 inches across, how many centimeters is that? Remember 1 in = 2.54 cm

• 76 cm

• 11.8 cm

• 0.762 m

• 2.5 ft

Chadra Dangi was the smallest person ever ever, measuring 21 inches tall. How many meters tall was he? Remember, 1 in = 2.54 cm and 100 cm = 1 m

• 53 m

• 0.53 cm

• 0.53 m

• 53 cm

100 kilometers =

• 10 meters

• 100,000 meters

• 10,000 meters

• 1,000 meters

30 hectometers =

• 300 decameters

• 3 decameters

• 3,000 decameters

• 0.3 decameters

25 centimeters =

• 250 hectometers

• 0.25 hectometers

• 0.025 hectometers

• 0.0025 hectometers

Select all the correct answers...

45 decimeters =

• 4.5 centimeters

• 450 centimeters

• 4.5 meters

• 450 meters

What is the conversion factor to convert inches to centimeters?

• 2.54

• 0.3937

• 1.609

• 3.281