MEASUREMENT Unit Conversions

SI Prefix Conversions Prefix Symbol Factor mega- M 106 kilo- k 103 BASE UNIT --- 100 deci- d 10-1 move left move right centi- c 10-2 milli- m 10-3 micro-  10-6 nano- n 10-9 pico- p 10-12

SI Prefix Conversions To the left or right? 1. Find the difference between the exponents of the two prefixes. 2. Move the decimal point that many places. To the left or right?

5. 6  5600 mm Change 5.6 m to millimeters k Base unit d c m  n p 106 103 100 10-1 10-2 10-3 10-6 10-9 10-12 move right Change 5.6 m to millimeters The difference between the exponents of the two prefixes is 3 Move the decimal point 3 places to the right 5. 6  5600 mm

M k Base unit d c m  n p 106 103 100 10-1 10-2 10-3 10-6 10-9 10-12 move left Convert 25 mg to grams The difference between the exponents of the two prefixes is 3 Move the decimal point 3 places to the left 2 5.  0.025 g

M k Base unit d c m  n p 106 103 100 10-1 10-2 10-3 10-6 10-9 10-12 move right Convert 0.45 km to mm The difference between the exponents of the two prefixes is 6 Move the decimal point 6 places to the right 0. 4 5  450000 mm

M k Base unit d c m  n p 106 103 100 10-1 10-2 10-3 10-6 10-9 10-12 move left Convert 35 mL to liters The difference between the exponents of the two prefixes is 3 Move the decimal point 3 places to the left 3 5.  0.035 L

5. 6  560000 cm Change 5.6 km to centimeters Base unit d c m  n p 106 103 100 10-1 10-2 10-3 10-6 10-9 10-12 move right Change 5.6 km to centimeters The difference between the exponents of the two prefixes is 5 Move the decimal point 5 places to the right 5. 6  560000 cm

SI Prefix Conversions 0.2 1) 20 cm = ______________ m 2) 0.032 L = ______________ mL 3) 45 m = ______________ nm 4) 805 dm = ______________ km 5) 532 m = ______________ km 32 45,000 0.0805 0.532

NUMBER UNIT SI Prefix Conversions = 0.532 532 m = _______ km NUMBER