NAME DATE

UNIT Converting Units

Conversions Between British/U.S. and SI Units }

British/U.S. System

1 in.

1ft

1 mi

iqt

1 Ib

SI

2.54 cm

0.305 m

1.61 km

0.946 L

4.448 N

111

Powers-of-Ten Prefixes

Power

106

103

io-2

10~3

10-6

io-9

Prefix

mega-

kilo-

centi-

milli-

micro-

nano-

Abbreviation

M

k

c

m

M

n

Converting from one set of units to another involves multiplying by a conversion

factor—a ratio of units that is equal to 1. Use the tables to find conversion factors

to make the conversions specified below.

1. 745 mm =

2. 100 m = _

m

km

3. 3.51 X 10-7s =

4. 4.5 mg =

ns

11. 95 km -

12. 125 Ib =

13. 20.5 N =

mi

. N

. Ib

14. exactly 1 gal (4 qt) =

5. 25 urn = _

6. 1200 MJ =

7. 5 mA = _

m 15. exactly 100 yd (300 ft) = m

16. 750 mL =

8. 12 V = kV

9. 15 in. =

10. 15 mi =

cm

km

17. 75 km/h =

18. 75 km/h =

19. 35 mi/h =

20. 35 mi/h =

qt

_ mi/h

_ m/s

. km/h

. m/s

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Unit 1, Tools of.Physical SciencePhysical Science, SV 0425-5