Question

An electric flashlight can be charged by turning a crank. Identify the types and order of energy changes happening.(2 points)

Mechanical --> Electric --> Light

Mechanical --> Heat --> Electric

Electric --> Light --> Heat

Electric --> Heat --> Mechanical

Answer 1

Mechanical --> Electric --> Light

Turning the crank does mechanical work, which a generator converts to electrical energy (stored in the battery). When the light is on that electrical energy becomes light (with some unavoidable heat losses).