**Fundamental Physical Quantities:**

S.No | Fundamental Physical Quantity | Formula | Dimensional Formula | S.I Unit of physical quantity |

1. | Mass | Amount of matter in the object | M | kg |

2. | Length | L | meter | |

3. | Time | T | sec | |

4. | Electric current | I or A | ampere | |

5. | Amount of substance | N | mole(mol) | |

6. | Luminous intensity | J | candela(cd) | |

7. | Temperature | K or | Kelvin |

**Derived Physical Quantities:**

S.No | Derived Physical Quantity | Formula | Dimensional Formula | S.I Unit of physical quantity |

1. | Area | [] | ||

2. | Volume | [] | ||

3. | Density | [] | ||

4. | Specific Gravity | [] | No units | |

5. | Frequency | [] | hertz | |

6. | Angle | No units | ||

7. | Velocity | m/sec | ||

8. | Speed | m/sec | ||

9. | Areal velocity | |||

10. | Acceleration | |||

11. | Linear momentum | kg m/sec | ||

12. | Force | kg-m/ or Newton | ||

13. | Weight | w=mg | kg-m/ or Newton | |

14. | Moment of force/Torque/Couple | kg | ||

15. | Impulse | kg m/sec or Ns | ||

16. | Pressure | N/ or Pa | ||

17. | Work | Nm or Joule | ||

18. | Kinetic Energy | joule | ||

19. | Potential Energy | mgh | joule | |

20. | Gravitational constant | |||

21. | Gravitational field strength | |||

22. | Gravitational Potential | |||

23. | Force constant (k) | |||

24. | Power | W or J/sec | ||

25. | Moment of Inertia ( I ) | kg | ||

26. | Stress | N/ or Pa | ||

27. | Strain | No units | ||

28. | Modulus of Elasticity | N/ or Pa | ||

29. | Poission’s Ratio | σ =-1 | No units | |

30. | Velocity gradient | |||

31. | Coefficient of dynamic viscosity | kg(or) N-sec/$latex \m^2$ (or)pascal-sec (or)poiseuille | ||

32. | Surface Tension | ,N/m | ||

33. | Angular displacement () | no Units | ||

34. | Angular velocity(ω) | rad/sec | ||

35. | Angular acceleration(α) | rad/ | ||

36. | Angular momentum | Iω | ||

37. | Angular Impulse | Iω | ||

38. | Temperature | or K | kelvin or degree Celsius | |

39. | Coefficient of linear expansion(α) | /kelvin | ||

40. | Specific heat | |||

41. | Latent heat | |||

42. | Entropy | |||

43. | Thermal capacity | |||

44. | Gas constant | |||

45. | coefficient of thermal conductivity | |||

46. | Pole strength | Am | ||

47. | Magnetic Moment | |||

48. | Magnetic flux | weber ; ;J/Amp | ||

49. | Magnetic field,magnetic flux density (B) | Tesla; | ||

50. | Permeability of free space | |||

51. | Magnetic susceptibilty also called volumetric or bulk susceptibility χ_{m} | χ_{m} = μ_{r} − 1 | no units | |

52. | Electric Charge | Amp sec , coul | ||

53. | Electric potential | Volt | ||

54. | E.M.F | Volt | ||

55. | Electric Capacity | Farad | ||

56. | Electric Resistance | Ohm (Ω) or volt/amp | ||

57. | Resistivity | Ohm mt (Ω-m) | ||

58. | Conductivity | 1/ | Siemens/m | |

59. | Permittivity | farad/m | ||

60. | Electric conductance | Siemens (or) mhos | ||

61. | Electric power | Watt | ||

62. | Electrical Impedance(Z) | Ohm (Ω) or volt/amp | ||

63. | Electrical admittance | 1/Z(Reciprocal of electric impedance) | Siemens (or) mhos | |

64. | Self Inductance(L) | weber/amp or Henry | ||

65. | Boltzmann’s constant | J/kelvin | ||

66. | Stefan’s constant | |||

67. | Co-efficient of friction | =,N=Normal reaction | dimension less scalar | no units |

68. | Dielectric constant | It is also called relative permittivity | dimension less | no units |

69. | Planck’s constant | J.sec (or) eV.sec | ||

70. | Refractive index | μ | no units | |

71. | Focal length(f) | Distance between center of the lens(mirror) to its focus | L | meter |

72. | Power of a lens (P) | The reciprocal of the focal length of a lens in meters is called power of a lens; p=1/f | diaptors | |

73. | Wave number | No.of waves/distance | ||

74. | Wave length | Length of a wave | L | meter |

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ReplyDeleteThe dimensional formula of Density is incorrect. It should be M to the power 1, L to the power -3.

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