Standard Science Primary 6 Energy

Which of the following shows the energy conversion that occurs in a battery-operated torch when it is switched on?

A Chemical potential energy -> Electrical energy -> Light energy + Heat energy
B Electrical energy -> Chemical potential energy -> Light energy
C Kinetic energy -> Electrical energy -> Light energy
D Light energy -> Electrical energy -> Chemical potential energy
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Worked Solution

Step 1: Energy is stored in the battery as chemical potential energy. Step 2: When the circuit is closed, it converts to electrical energy. Step 3: The bulb converts electrical energy into light and heat energy.

Correct answer: Chemical potential energy -> Electrical energy -> Light energy + Heat energy

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