Standard Science Primary 6 Energy

Jun Jie released a ball from the top of a slide. As the ball moves down the slide, what are the energy conversions taking place?

A Gravitational potential energy → Kinetic energy + Heat energy + Sound energy
B Kinetic energy → Gravitational potential energy + Heat energy
C Kinetic energy → Sound energy + Heat energy
D Chemical potential energy → Kinetic energy + Sound energy
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Worked Solution

Step 1: The ball has Gravitational Potential Energy (GPE) at the top due to its height. Step 2: As it slides down, GPE is converted into Kinetic Energy (movement). Step 3: Friction causes some energy to be converted to heat and sound. Final Answer: GPE → Kinetic + Heat + Sound.

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

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