Standard Science Primary 6 Energy

A ball is dropped from a height of 2 metres. As the ball falls towards the ground, what happens to its Gravitational Potential Energy (GPE) and Kinetic Energy (KE)?

A GPE decreases, KE decreases
B GPE increases, KE decreases
C GPE decreases, KE increases
D GPE increases, KE increases
Show Worked Solution

Worked Solution

Step 1: GPE depends on height. As the ball falls, height decreases, so GPE decreases. Step 2: According to the principle of conservation of energy, GPE is converted into KE as the ball accelerates downwards. Step 3: Therefore, KE increases.

Correct answer: GPE decreases, KE increases

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