Standard Science Primary 6 Energy

A battery-operated toy car is moving across a carpet. Which of the following correctly shows the energy conversion taking place?

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

Worked Solution

Step 1: The battery stores chemical potential energy. Step [2-9]: This is converted to electrical energy to power the motor. Step [2-9]: The motor converts electrical energy into kinetic energy (motion), with some energy lost as heat and sound.

Correct answer: Chemical potential energy → Electrical energy → Kinetic 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