Exercises on SI units and conversions
| True / false 1-10 |
- The meter is about the same length as the foot. FALSE
- A kilogram is roughly the same weight as a liter of water.TRUE
- The prefix milli- means multiply by 1/ 100. FALSE
- The prefix centi- means multiply by 1000. FALSE
- The volume 43 milliliters = 0.043 liters. TRUE
- The length 3.45 meters is the same as 34.5 centimeters. FALSE
- The size of the Kelvin and Celsius degrees are the same. TRUE
- The SI unit kilogram measures mass. TRUE
- The length base SI unit is the meter. TRUE
- The prefix milli- is smaller than the prefix kilo-. TRUE
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11. Why are time units the same in English and SI units?
There is no right or wrong answer to this. The day is the same length all over the world. The number of months are the same and commerce requires a common measure of time. |
12. What is the prefix that matches the multiple 1,000,000.
a. |
centi- this means 1/100 or one over one hundred |
b. |
kilo- this means one thousand 1000 |
c. |
mega- means million |
d. |
milli- this means 1/1000 or one over a thousand |
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13. Which of the following is a derived unit?
a. |
meter |
b. |
seconds |
c. |
kilogram |
d. |
meters / second this is a combination of two base units length and time |
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14. Which of the following is the multiple that matches the prefix nano-?
a. |
0.001 |
b. |
1/ 100 |
c. |
1,000,000,000 |
d. |
1 / 1,000,000,000 means one billionth or nano- |
15. The mass 223 grams is the same as
a. |
223 g x ( 1 kg / 100 g) |
b. |
223 g x ( 1 kg / 1000 g)Cancel "g" when multipling grams by ( kg / gram ) |
c. |
223 g x (1000 g / 1 kg) |
d. |
223 g x ( 1 kg / 10 g) |
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