Multiple choice

Electric bulb converts

  1. electric energy into sound energy

  2. electric energy into light energy

  3. heat energy into mechanical energy

  4. heat energy into electric energy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An electric bulb converts electrical energy into light energy (and some heat energy). This is the fundamental principle of how incandescent and LED bulbs work - they transform electricity into visible light. Sound energy production would be a speaker, while mechanical energy conversion relates to motors and generators.

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