An electric motor turns the blades of a fan. The input energy of the motor and fan is electrical energy. The output energy is the mechanical energy of the turning blades. The energy output is less than the energy input.
Electrical energy > Mechanical energy
Which best explains what happened to the rest of the energy?
A. It was destroyed.
B. Most of it was lost as heat.
C. It was converted into a charge
D. Most of it was stored as mass in the motor.
