Advanced Science Primary 6 Energy

A toy car is wound up and released. It travels across the floor before coming to a stop. Which energy conversion takes place while it is MOVING?

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

Worked Solution

Step 1: Winding the toy stores elastic potential energy in the spring. Step [2-9]: When released, the spring unwinds, converting that energy into motion (kinetic). Step [2-9]: Friction converts some energy into heat and sound.

Correct answer: Elastic potential energy → Kinetic energy + Heat + Sound

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