Units of measurement
Weil, Jonathan F. Senior Staff Editor, "McGraw-Hill Encyclopedia of Science and Technology," McGraw-Hill Education, New York, New York.
- Geometrical Units
- Plane angle units
- Mechanical Units
- Absolute systems
- Gravitational systems
- Length units
- Area units
- Units of volume
- Time units
- Frequency units
- Speed and velocity units
- Acceleration units
- Mass units
- Force units
- Pressure and stress units
- Energy and work units
- Power units
- Torque units
- Viscosity units
- Permeability units
- Electrical Units
- Units of magnetic flux density
- Units of magnetic field strength
- Units of magnetic potential and mmf
- Photometric Units
- Luminous energy units
- Radiation Units
- Activity units
- Exposure units
- Absorbed dose and kerma units
- Dose equivalent units
- Unit of Catalytic Activity
- Other Units
- Additional Readings
Values, quantities, or magnitudes in terms of which other such are expressed. Units are grouped into systems, suitable for use in the measurement of physical quantities and in the convenient statement of laws relating physical quantities. A quantity is a measurable attribute of phenomena or matter.
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