Introduction To Si Units Worksheet (Page 3 of 6) in pdf

Introduction To Si Units Worksheet Page 3

o 1 knot (kt) = 1.151 mph

o 1 m/sec = 3.281 ft/sec = 2.237 mph = 3.6 km/h

To quickly convert between miles per hour (mph) and meters/second (m/sec), use the following:

___ mph x 0.45 = ___ m/sec

o ___ m/sec ÷ 0.45 = ___ mph

•

Area - The SI unit of area is the square meter (m2). Common units of measure are equal to the

following:

1 in2 = 6.452 cm2

o 1 ft2 = 144 in2 = 929.0 cm2

o 1 yd2 = 0.836 m2

o 1 mi2 = 2.59 km2

Remember that:

10,000 cm2 = 1 m2

•

Volume - The SI unit of volume is the cubic meter (m3). Common units of measure are equal to

the following:

o 1 gal = 3.785 liters (l)

o 1 in3 = 16.387 cm3 (cc)

o 1 ft3 = 28.32 l

Remember that:

o 1,000,000 cm3 = 1 m3

•

Flow rate – An SI unit of flow rate is liters per minute (lpm). 1 cubic foot per minute (cfm) is

equal to 28.32 lpm.

To quickly convert between cfm and lpm, use the following:

o ___ cfm x 28.32 = ___ lpm

o ___ lpm ÷ 28.32 = ___ cfm

•

Weight - The SI unit of weight is the gram (g). Common units of measure are equal to the

following:

o 1 ounce (oz) = 28.32 grams (g)

o 1 pound (lb) = 0.4536 kilograms (kg)

To quickly convert between lbs and kg, use the following:

o ___ lbs x 0.45 = ___ kg

o ___ kg ÷ 0.45 = ___ lbs

•

Temperature- The SI unit of temperature is the Kelvin (K). Common units of measure are equal

to the following:

o 0° Fahrenheit (F) = –17.778° Celsius (C)

o 1° C = 1.8° F

o 0° C = 273° Kelvin (K)

Introduction To Si Units Worksheet Page 3