Practice Problems
Solve each of the following problems as directed. Show all your work. Use the correct abbreviation for each unit.
1. Convert 83 cm into meters.
2. Convert 459 L into milliliters.
3. Express 1123 pg in nanograms.
4. Express 0.032 mL in liters.
5. Express 2.5 mm in micrometers.
6. Which is the longer amount of time, 1351 ps
or 1.2 ns? Explain your answer.
7. Which is the larger pressure, 232.1 kPa or
125,487 Pa? Explain your answer.
8. Which is the smallest mass, 283.0 dg or 23.78
mg? Explain your answer.
9. Which is the shorter length, 175.6 mm or 38.4
cm? Explain your answer.
10. Convert the following masses into grams.
a. 0.7824 mg
b. 345,000 ng
c. 0.00378 kg
d. 34,981 micrograms
1. Every numbering sistem has a _________________unit.
2. The base unit of the Roman system was _________________.
3. The measurement of time began in Babylonia using base __________.
4. The modern ______________ system used in computers uses base two.
5. The two most commonly used measurement systems today are the
______________ and ______________ systems.
6. The distance from the point of the elbow to the tip of the middle
finger of the outstretched hand is called the ______________.
7. The length between the tips of the thumb and the little finger of
the outstretched hand is called the ______________.
8. The breath of four fingers is called the ______________.
9. The breath of the middle finger is called the ______________.
10. The ______________ is equal to about six feet and came from the
length of outstretched arms and is used by seamen today.
11. The breath of the thumb is called the ______________.
12. The distance from the nose to the thumb is called the
______________.
13. The ______________ is equal to four inches and is used measuring
horses today.
14. In what country did the metric system begin? ______________.
15. Today ______________ % of the world countries use the metric
system.
16. What substance was chose as a standard for the metric system?
______________.
17. The ______________ is the mass of one milliliter of water at 4
degrees celsius.
18. Mass is measured in what metric unit?______________.
19. Length is measured in what metric unit? ______________.
20. Volume is measured in what metric unit? ______________.