Metric Prefixes
G(109) M(106) k(103) c(10−2) m(10−3) μ(10−6) n(10−9) p(10−12)
Moving Decimal
Each prefix step = ×103 or ×10−3
Key Conversions
1 atm = 760 mmHg = 101.3 kPa | 1 L = 10−3 m3 | 1 eV = 1.6 × 10−19 J
Dimensional Analysis
Cancel units step by step; start with what you know
Speed of Light
c = 3 × 108 m/s | 1 cal = 4.184 J
Derived → Base SI
N = kg·m/s2 | J = N·m = kg·m2/s2 | W = J/s | V = J/C | Pa = N/m2
