Standard Science Primary 6 Energy

Which of the following shows the energy conversion that takes place when a battery-operated torch is switched on?

A Chemical potential energy → Kinetic energy → Light energy
B Electrical energy → Chemical potential energy → Light energy
C Potential energy → Heat energy → Light energy
D Chemical potential energy → Electrical energy → Light energy + Heat energy
Show Worked Solution

Worked Solution

Step 1: Identify the source of energy (battery = chemical potential energy). Step 2: Switching it on converts this to electrical energy in the wires. Step 3: The bulb then converts electrical energy to light and heat.

Correct answer: Chemical potential energy → Electrical energy → Light energy + Heat energy

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free