At the end of a sunny day, Cindy turns on an electric fan to cool off her room. When she turns off the fan a little later, she notices that the area around the motor is warmer than it was when she turned on the fan. What is the most likely explanation for this?

1.Electrical energy was transformed into heat and energy of motion.


2.Solar energy was transformed into heat and energy of motion.

3.Solar energy was transformed into electrical energy and heat.


4.Electrical energy was transformed into sound and light.