CHEMISTRY

SI WORKSHEET # 3 - Answers

1. Why is the SI or metric system so popular? (2 reasons)

Everyone uses it… i.e. Universal units

Conversion from one unit to another means simply sliding the decimal point, no messy

conversion factors to work with.

2. Give the base units for:

Length Meter

Mass Gram

Volume Liter

3. Explain how you would convert meters to centimeters.

Centimeters are smaller, so we need more of them to equal meters

2 powers of ten

Move decimal 2 places to the right

4. Give the metric measure approximately equal to the following:

a. A paper clip weighs approximately one GRAM.

b. 1/2 mile is approximately equal one KILOMETER.

c. Ten gallons of gasoline would be approximately 40 liters.

5. Convert the following:

a. 400 mm. = 40.0 cm

b. 0.0056 km. = 5.6 m

c. 5600 ml. = 5.6 l

d. 10.9 m. = 10,900 mm

e. 3.45 l. = 3450 ml

f. 566 gr. = 0.566 kg