Fact 1: An incandescent light bulb converts electricity into light by sending electricity through a filament.

Fact 2: Light is the oscillations in the electric field.

Given the two facts above, answer the question "Incandescent bulbs convert electricity into what in the electric field?" with the following options: 
- activation energy
 - fragments
 - motors
 - kinetic energy
 - oscillations
 - shards
 - heat energy
 - energy


 

     oscillations    