Advanced Science Primary 4 Energy

A ball is dropped from a height of 2 metres. As it falls towards the ground, what happens to its gravitational potential energy and kinetic energy?

A GPE increases, KE decreases
B Both GPE and KE decrease
C Both GPE and KE increase
D GPE decreases, KE increases
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Worked Solution

Step 1: Gravitational Potential Energy (GPE) decreases as height decreases. Step [2-9]: This GPE is converted into Kinetic Energy (KE) as the ball speeds up.

Correct answer: GPE decreases, KE increases

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