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1.7.1a Energy stores and energy transfers

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Question 9

A device is described as having high efficiency. What does this mean?

A

It works very quickly.

B

It uses a small amount of total input energy.

C

It transfers a high proportion of input energy to useful output energy.

D

It has a high power output.

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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