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1.7.4 Power

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Question 44

A crane of constant power P P\,P is used to lift a crate of mass m m\,m vertically through a height h h\,h in a time ttt. The acceleration of free fall is ggg. Which equation can be used to calculate the height hhh?

A

h=Ptmgh = \frac{Pt}{mg}h=mgPt​

B

h=Pmgth = \frac{P}{mgt}h=mgtP​

C

h=tPmgh = \frac{t}{Pmg}h=Pmgt​

D

h=mgtPh = \frac{mgt}{P}h=Pmgt​

Markscheme

1.7.4 Power Questions

  1. IGCSE
  2. /Physics
  3. /1.7.4 Power

95 exam-style questions on CIE IGCSE Physics 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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