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1.7.1a Energy stores and energy transfers

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Question 132

A device has high efficiency.

What does this mean?

A

Most of the input energy is transferred to useful output energy.

B

It transfers a large amount of energy every second.

C

It uses a very small amount of total input energy to run.

D

All of the wasted energy is destroyed by the device.

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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