1. Units of Measurement and Conversions

2. Conversion in the Metric System Giga- (G) 1,000,000,000 10 9 Mega- (M) 1,000,00010 6 Kilo- ( k ) 1,000 10 3 Deci- (d) 0.110 -1 Centi- (c) 0.0110 -2 Milli- (m) 0.000110 -3 Micro- ( μ ) 0.000001 10 -6 Nano- ( η ) 0.000000001 10 -9

3. Metric Units Mass Gram Volume Liter Temperature Celsius Kelvin Time Second Distance Meter Speed/Velocity m/s Acceleration m/s 2 Force Newton (N) kg  m/s 2

4. Energy / Work Joule (N  m) Power Watt (J/s) Momentum Kg  m/s Frequency Cycles/sec (Hz) Density g/mL Voltage (potential difference) Volts Current Amperes Resistance Ohms ( Ω ) Intensity of Light Candela (cd)

5. Conversion factors 1 inch = 2.54 cm 1 mile = 1.61 km 1 kg= 2.21 lbs 1 lb = 4.448 N 746 W = 1 hp (horsepower) Celsius to Kelvin = °C + 273 Celsius to Fahrenheit = (9/5 x °C) + 32 Fahrenheit to Celsius = 5/9 (°F – 32)