Engineering Fundamentals: An Introduction to Engineering, 4th ed.c

TABLE 6.1 A List of SI Base (Fundamental) Units

Physical Quantity Name of SI Base Unit SI Symbol

Length Meter m

Mass Kilogram kg

Time Second s

Thermodynamic temperature Kelvin K

Electric current Ampere A

Amount of substance Uranium 238 ←One of the Mole mol

Gold 197 heaviest

Silver 108 atoms known

Copper 64

Calcium 40

Aluminum 27

Carbon 12 ← Common Carbon is

Helium 4 used as a standard

Hydrogen 1 ← Lightest atom

Luminous intensity Candela cd

50 kg–120 kg

Range of mass for most adults

Fastest person can run

100 meters in approximately

10 seconds

120 volts

1.25 amps

150 watts

Comfortable room temperature: 295 kelvin

Ice water:

273 kelvin

A candle has luminous

intensity of approximately

1 candela

1.6 m–2.0 m

Range of height for most adults

133

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