*Physical quantities
*Physical quantities
| Quantity (symbol) | Definition / Relation | Type |
| Mass (m) | Quantity of matter contained in a substance | Scalar |
| Distance (D) | Actual path length | Scalar |
| Speed (v) | Distance covered per unit time spent | Scalar |
| Time (t) | Reference to measure duration of an event. | Scalar |
| Electric current (I) | Rate of flow of charge. | Scalar |
| Pressure (P) | Normal force per unit area | Scalar |
| Surface tension (S) | Tangential force per unit length | Scalar |
| Work (W) | Line integral of force | Scalar |
| Power (P) | Rate of work | Scalar |
| Energy (E) | Capacity to do work | Scalar |
| Heat (H) | Energy in transit due to temperature difference | Scalar |
| Electric potential (V) | Line integral of electric field | Scalar |
| Electric flux (f) | Surface integral of electric field | Scalar |
| Specific heat (s) | Heat per unit temp. change per unit mass | Scalar |
| Latent heat (L) | Heat per unit mass for changing state of a material | Scalar |
| Temperature (T) | Degree of hotness or coldness | Scalar |
| Electric charge (q) | Measure of amount of electrification | Scalar |
| Density (r) | Mass per unit volume | Scalar |
| Moment of inertia (I) | Reluctance for rotational changes | Scalar |
