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