Final answer:
The statement is false; incandescent bulbs do not use a ballast. Incandescent bulbs emit light by heating a filament, while CFLs, which use a ballast to regulate current, emit light by exciting gas molecules to produce UV light.
Step-by-step explanation:
The statement that a type of lamp powered up by a ballast is known as an incandescent bulb is false. An incandescent light bulb is a device that emits light by heating a filament, typically made of tungsten, until it glows. The filament is enclosed in a glass bulb that is partially evacuated of air, and when electric current passes through, it heats up and emits both light and heat.
In contrast, light bulbs that use a ballast, such as compact fluorescent lamps (CFL), operate differently. A ballast is used in fluorescent lamps, including CFLs, to regulate the current through the lamp and provide sufficient voltage to start the lamps. Once running, the ballast reduces the current to a safe level so that the lamp can produce light without overheating. Therefore, it is CFLs, not incandescent bulbs, that are associated with the use of a ballast.