Leadership

Physics

Nine Standard

Test your understanding of this lesson Power:-

1)
SI unit of power is
  • joule
  • kg-joule
  • watt
  • kg-watt
2)
Gravitational SI unit of power is
  • joule/s
  • gm-cm/s
  • kg-weight/s
  • kg-meter/s
3)
Relation among power(P), force(F) and velocity(V) is
  • \(P=\frac{F}{V}\)
  • P=FV
  • \(P=\frac{V}{F}\)
  • \(P=F^{2}V\)
4)
Relation among Power(P), work(W) and time(T) is
  • PT=W
  • \(W=\frac{P}{T}\)
  • PW=T
  • none of these
5)
1 watt equals to
  • 1 erg/s
  • 1 joule/s
  • 1 gm-cm/s
  • 1 kg-metre/s
Hand draw

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