When a teacher shines light on a photocell attached to a fan, the blades of the fan turn. The brighter the light shone on the photocell, the faster the blades turn. Which energy conversion is illustrated by this demonstration? (1) light → thermal → mechanical (2) light → nuclear → thermal (3) light → electrical → mechanical (4) light → mechanical → chemical

(1) Answers

3 - Light Electrical Mechanical The light energy emitted by the light is converted by the photocell to electrical energy, and then supplied to the fan blades which turn ie Kinetic/Mechanical energy.

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