Metric PrefixesLook along on your

Conversion Factor sheet

Metric System Review

Metric PrefixMetric Prefix – symbol that goes in

front of a base unit that indicates a portion of that unit

For example:kilo + meter = kilometer = 1,000 meters

1 km = 1,000 m

Common Base Units: meters (m), grams (g), Liters (L), seconds (s)

1 Megameter = 1Mm

Mega = M

1 M____ = 1,000,000 _____ = 106 ____m m mg g gL L L

1 kilometer = 1km

kilo = k

1 k____ = 1,000 _____ = 103____

2.5 laps = 1 kilometer

L L L

m m mg g g

1 centimeter = 1cm

centi = c

1____ = 100 c _____ = 102 c____

The width of your thumb = 1 cm

L L L

m m mg g g

1 millimeter = 1 mm

milli = m

1____ = 1000 m _____ = 103 m____

The width of a quarter = 1 mm

L L L

m m mg g g

1 micrometer = 1 μm

micro = μ

1____ = 1,000,000 μ _____ = 106 μ____

The width of a hair = 1 μm

L L L

m m mg g g

Quick CheckHow many centimeters (cm) are in 1

meter(m)?

1) 100 cm in 1 m2) 1,000 cm in 1 m3) 100 m in 1 cm

Quick CheckHow many milligrams (mg) are in 1 gram (g)?

1) 100 mg in 1 g2) 1,000 mg in 1 g3) 1000 g in 1 mg

Quick CheckWhat is the relationship between kiloliters

(kL) and liters (L)?

1) 1000 L = 1 kL2) 1 L = 1000 kL3) 100 L = 1 kL4) 1,000,000 L = 1 kL

Quick CheckHow many nanoseconds (ns) are in 1 second (s)?

1) 109 ns in 1 s2) 10-9 ns in 1 s3) 109 s in 1 ns

Quick CheckWhat is the relationship between

MegaJoules(MJ) and Joules (J)?

1) 1000 J = 1 MJ2) 1 J = 1000 MJ3) 100 J = 1 MJ4) 1,000,000 J = 1 MJ