A ball is rolling down a slope. As it moves from the top to the bottom, what happens to its Gravitational Potential Energy (GPE) and Kinetic Energy (KE)?
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Worked Solution
Step 1: GPE depends on the height of the object.
Step 2: As the ball rolls down, its height decreases, so GPE decreases.
Step 3: As it rolls down, it gains speed, so KE increases.
Step 4: GPE is converted into KE.
Correct answer: GPE decreases, KE increases
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