In a simple circuit with a battery and a bulb, energy is transformed from chemical energy to electrical energy and then to light and thermal energy.

• A. True
• B. False
• C. Only electrical energy is produced
• D. The energy is stored as kinetic energy

Answer: (A)

In a simple circuit, energy changes form. The battery contains chemical energy in its cells, and when the circuit is closed that chemical energy is converted into electrical energy as charges move. When those electrical energy flows reach the bulb, the bulb uses that energy to emit light and, as a byproduct, heat it up. So the energy goes from chemical to electrical to light and thermal energy, which means energy is conserved but transformed. That’s why the statement is true—the bulb produces both light and heat, not just electrical energy, and it isn’t stored as kinetic energy in this scenario.