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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

  1. Option A: light → electrical → chemical
  2. Option B: electrical → chemical → sound
  3. Option C: chemical → electrical → lightCorrect
  4. 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.

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