Science quiz
SI derived units and what they measure
Twenty two derived units have names of their own. Each row shows a quantity; type the unit that measures it.
- Format
- Type them all
- Items
- 22 answers
- Limit
- 6:00
- Level
- Hard
- Checked
- 2026.10.03
- Answers
- 22
- Time limit
- 6:00
- Order
- Any order
- Matching
- Case and accents ignored
- Type an answer; it files itself the moment it matches.
- One answer can fill several slots.
- Give up at any time to see what you missed.
- Pause whenever you like (Esc). The board hides while the clock is stopped.
Name the SI unit for each quantity.
| Quantity | Unit | Symbol |
|---|---|---|
| Plane angle | Not found yet | |
| Solid angle | Not found yet | |
| Frequency | Not found yet | |
| Force | Not found yet | |
| Pressure, stress | Not found yet | |
| Energy, work, heat | Not found yet | |
| Power, radiant flux | Not found yet | |
| Electric charge | Not found yet | |
| Electric potential difference | Not found yet | |
| Capacitance | Not found yet | |
| Electric resistance | Not found yet |
| Quantity | Unit | Symbol |
|---|---|---|
| Electric conductance | Not found yet | |
| Magnetic flux | Not found yet | |
| Magnetic flux density | Not found yet | |
| Inductance | Not found yet | |
| Celsius temperature | Not found yet | |
| Luminous flux | Not found yet | |
| Illuminance | Not found yet | |
| Activity of a radionuclide | Not found yet | |
| Absorbed dose | Not found yet | |
| Dose equivalent | Not found yet | |
| Catalytic activity | Not found yet |
About this quiz
Derived units are built from the seven SI base units. Twenty two of them are used so often that they have special names and symbols of their own.
- A newton is one kilogram metre per second squared.
- The gray and the sievert have the same base units, joules per kilogram, but measure different things.
- A watt is one joule per second, and a volt is one watt per ampere.
- The hertz and the becquerel are both one per second: one counts cycles, the other radioactive decays.
Sources
- [1]National Institute of Standards and Technology. SP 330: The International System of Units, section 2.
- [2]BIPM. The SI.
Note on the data. Quantities, unit names and symbols follow Table 4 of NIST Special Publication 330, the United States edition of the BIPM's SI Brochure, checked on 3 October 2026. Celsius alone is accepted for the degree Celsius.
Last checked October 3, 2026
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