A. What are the SI units for these:

1. Length
2. Mass
3. Time
4. Temperature

B. Convert these length units to SI units:

1. 2156 cm
2. 2.48 yards
3. 67.2 in
4. 2 miles

C. Convert these masses to SI units:

1. 2000 g
2. 4 lbs
3. 0.692 torr

D. Convert these temperatures to SI units:

1. 26^oF
2. 24^oC

A.

1. meters
2. kilograms
3. seconds
4. kelvin

B.

1. Remember what I said in the tutorial about multiplying and dividing? You must divide the original units with the original units, with the new units on top. In the first step, the 1 inch is the new unit, and the cm is the old unit. The cms cancel out when you multiply them together (simple algebra)
   2156 cm * (1 inch/2.54 cm) * (1 meter/39.37 inches) = 21.56 meters
2. 2.48 yards * (1 meter / 1.094 yards) = 2.27 meters
3. 67.2 in * ( 1 meter / 39.37 in) = 1.71 meters
4. 2 miles * (1609 meters / 1 mile) = 3218 meters

C.

1. 2000 g * (1 kg / 1000g ) = 2 kg
2. 4 lb. * (0.4536 kg/ 1 lbs) = 1.18144 kg
3. 0.692 ton * (2000 lbs / 1 ton) * (0.4536 kg / 1 lbs) = 627.8 kg

D.

1. C = (5/9)(F - 32) = (5/9)(26-32) = -3.33^oC + 273 = 269.667 K
2. 46^oC + 273 = 318 K