Leadership

Physics

Nine Standard

Test your understanding of this lesson Work:-

1)
SI unit of work is
  • joule
  • erg
  • calorie
  • watt
2)
The erg is the unit of
  • power
  • work
  • energy
  • both (b) & (c)
3)
1 erg equals to
  • \(10^{5}\) joule
  • \(10^{7}\) joule
  • \(10^{-7}\) joule
  • \(10^{-5}\) joule
4)
Dimensional formula of work is
  • \(\left[ MLT^{-1}\right]\)
  • \(\left[ MLT^{-2}\right]\)
  • \(\left[ ML^{2}T^{-1}\right]\)
  • \(\left[ ML^{2}T^{-2}\right]\)
5)
Gravitational unit of work in SI is
  • gm-cm
  • kg-m
  • gm/cm
  • kg/m
Hand draw

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