Standard Science Primary 6 Energy

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

A Potential energy increases, kinetic energy decreases.
B Potential energy decreases, kinetic energy increases.
C Both potential and kinetic energy increase.
D Both potential and kinetic energy decrease.
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Worked Solution

Step 1: Gravitational potential energy depends on height. As the ball falls, height decreases, so potential energy decreases. Step 2: As the ball falls, it speeds up, so kinetic energy increases. Step 3: Potential energy is converted into kinetic energy.

Correct answer: Potential energy decreases, kinetic energy increases.

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