
Units and Dimensions of a Few Derived Quantities
Physical Quantity | Unit | Dimensional Formula |
Displacement | m | M0L1T0 |
Area | m2 | M0L2T0 |
Volume | m3 | M0L3T0 |
Velocity | ms-1 | M0L1T-1 |
Acceleration | ms-2 | M0L1T-2 |
Density | Kg m-3 | M1L-3T0 |
Momentum | Kg ms-1 | M1L1T-1 |
Work/Energy/Heat | Joule (or) Kg m2/sec2 | M1L2T-2 |
Power | Watt (W) (or) Joule/sec | M1L2T-3 |
Angular Velocity | rad s-1 | M0L0T-1 |
Angular Acceleration | rad s-2 | M0L0T-2 |
Moment of Inertia | Kg m2 | M1L2T0 |
Force | Newton (or) Kg m/sec2 | M1L1T-2 |
Pressure | Newton/m (or) Kg m-1/sec2 | M1L-1T-2 |
Impulse | Newton sec (or) Kg m/sec | M1L1T-1 |
Inertia | Kg m2 | M1L2T0 |
Electric Current | Ampere (or) C/sec | QT-1 |
Resistance/Impedance | Ohm (or) Kg m2/sec C2 | ML2T-1Q-2 |
EMF/Voltage/Potential | Volt (or) Kg m2/sec2 C | ML2T-2Q-1 |
Permeability | henry/m (or) Kg m/C2 | MLQ-2 |
Permittivity | Farad/m (or) sec2C2/Kgm3 | T2Q2M-1L-3 |
Frequency | Hertz (or) sec-1 | T-1 |
Wavelength | m | L1 |