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1.7.1a Energy stores and energy transfers

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Question 39

In a small hydroelectric power scheme, 1500 kg of water drops through a vertical height of 4.0 m every second. The electrical output is 41.2 kW.

What is the efficiency of the scheme?

A

0.70%0.70\%0.70%

B

14%14\%14%

C

70%70\%70%

D

85%85\%85%

Markscheme

1.7.1a Energy stores and energy transfers Questions

  1. IGCSE
  2. /Physics
  3. /1.7.1a Energy stores and energy transfers

229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.

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