Advanced Science Primary 6 Energy

A ball is rolling down a smooth slope. As it moves from the top to the bottom, what happens to its energy?

A GPE decreases, Kinetic decreases
B Both remain the same
C GPE increases, Kinetic increases
D GPE decreases, Kinetic increases
Show Worked Solution

Worked Solution

Step 1: Gravitational Potential Energy (GPE) depends on height. As it rolls down, height decreases, so GPE decreases. Step [2-9]: As it speeds up, Kinetic Energy increases. Step [2-9]: GPE is being converted into Kinetic energy.

Correct answer: GPE decreases, Kinetic increases

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