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Subject :NSO    Class : Class 4

A laptop changes electrical energy into light and sound energy. Which statement is correct regarding this?

AEnergy is required to do work.
BEnergy can be created or destroyed.
CEnergy can be changed from one form to another.
DEnergy conversion occurs very fast.

The question seems wrong.It seems like in the question correct should be replaced by incorrect as options a c d seem correct. B is incorrect.

Ans 1:

Class : Class 5
Answer is C because it tells a laptop changes electrical energy to light and sound energy and this tells energy changes from one form to another.

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