|
S I UNITS |
| S.I. unit (abbrev.) | Defined equivalent | Important relationships | |
| Length | meter (m) | (base unit) | 1 inch = 2.54 cm (exactly) |
| Mass | gram (g) | (base unit) | 1 cm3 of water = 1 g |
| Time | second (s) | (base unit) | |
| Volume | liter (L) | 1 L = 1 dm3 | 1 ml = 1 cm3 |
| Force | Newton (N) | 1 N = 1 kg m / s2 | |
| Pressure | Pascal (Pa) | 1 Pa = 1 N / m2 | 1 atm = 103.1 kPa = 760 mm Hg |
| Work, Energy | Joule (J) | 1 J = 1 N m | 1 calorie (cal) = 4.182 J |
| Qty. of matter | mole (mol) | (base unit) | 1 mole of any element has 6.022 * 1023 atoms |
| Temperature | Kelvin (K) | (base unit) | K = oC + 273; oF = 1.8 oC + 32 |
| Electric current | Ampere (amp) | (base unit) | |
| Luminous intensity | candela (cd) | (base unit) | |
| Power | Watt (W) | 1 W = 1 J/s | 1 W = 1 V * 1 amp |
| Electric charge | Coulomb (C) | 1 C = 1 amp s | |
| Elec. potential | Volt (V) | 1 V = 1 J/C | 1 V = 1 W / amp |