# *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 |