Standard Science Primary 6 Energy

Which of the following shows the correct energy conversion in a flashlight powered by batteries?

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

Worked Solution

Step 1: Identify the source: Batteries (Chemical Potential Energy). Step 2: Identify the carrier: Current in wires (Electrical Energy). Step 3: Identify the outputs: The bulb (Light and Heat Energy).

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