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When a fan is turned on, it changes electrical energy into _____________ energy.
a. motion
b.magnetic
c. gravitational
d.electromagnetic


Sagot :

AL2006

When the fan is running, it causes air to move.  Think about it:  Air that was
not moving a few moments ago starts moving, so it must have gotten a kick
of energy from somewhere.  That's the energy that started out at the power-
plant as nuclear energy in a uranium rod or chemical energy in a lump of coal,
moved from the power-generating plant to your house as electrical energy, and
made the fan spin.  Finally, it ended up as 'kinetic' energy of moving air.