Quiz-summary
0 of 4 questions completed
Questions:
- 1
- 2
- 3
- 4
Information
International System of Units
The International System of Units (SI), adopted by the General Conference on Weights and Measures in 1960. There are six (5) principal units from which the units of
all other physical quantities can be derived. Table 1 below shows the six units, their symbols, and the physical quantities they represent. The SI units are used are used by professionals irrespective of their geographical location.
One great advantage of the SI unit is that it uses prefixes based on the power of 10 to relate larger and smaller units to the basic unit. Table 2 shows the SI prefixes and their symbols.
Example:
1,000,000 mm = 1,000 m = 1 km
Quantity | Basic unit | Symbol |
---|---|---|
Length | meter | m |
Mass | kilogram | kg |
Time | second | s |
Electric current | ampere | A |
Thermodynamic temperature | kelvin | K |
Luminous intensity | candela | cd |
Multiplier | Prefix | Symbol |
---|---|---|
1018 | exa | E |
1015 | peta | P |
1012 | Tera | T |
109 | giga | G |
106 | mega | M |
103 | kilo | k |
102 | hecto | h |
10 | deka | da |
10-2 | centi | c |
10-3 | milli | m |
10-6 | micro | µ |
10-9 | nano | n |
10-12 | pico | p |
10-15 | femto | f |
10-18 | atto | a |
References:
1. Fundamentals of Electric Circuits, 3rd Ed.
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 4 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- Answered
- Review
-
Question 1 of 4
1. Question
1 pointsHow many basic units are there for the SI units.
Correct
Incorrect
-
Question 2 of 4
2. Question
1 pointsWhat is the unit for luminous intensity?
Correct
Incorrect
-
Question 3 of 4
3. Question
1 pointsHow many meters are there in 10 millimeters?
Correct
Incorrect
-
Question 4 of 4
4. Question
1 pointsHow many kilograms are there in 20 hectograms?
Correct
Incorrect