UPCAT Science practice question 35: In a battery-powered flashlight, the main sequence of energy transformation is
Correct answer
C. chemical → electrical → light
Stored chemical energy in the battery becomes electrical energy in the circuit, which the bulb converts to light and heat.
The question
In a battery-powered flashlight, the main sequence of energy transformation is
- Option A: light → electrical → chemical
- Option B: electrical → chemical → sound
- Option C: chemical → electrical → lightCorrect
- Option D: nuclear → electrical → light
Why C is correct
Stored chemical energy in the battery becomes electrical energy in the circuit, which the bulb converts to light and heat.