Standard Science Primary 6 Energy

A toy car is wound up using a key and then released on a flat floor. Which of the following shows the correct energy conversion?

A Chemical potential energy → Kinetic energy
B Kinetic energy → Sound energy only
C Kinetic energy → Potential energy
D Elastic potential energy → Kinetic energy
Show Worked Solution

Worked Solution

Step 1: Winding the key compresses a spring inside the toy. Step 2: Stored energy in a compressed spring is elastic potential energy. Step 3: When released, the spring unwinds and moves the car (kinetic energy). Final Answer: Elastic potential energy → Kinetic energy

Correct answer: Elastic potential energy → Kinetic energy

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