Standard Science Primary 6 Interactions

Two identical balls are dropped from different heights. Ball A is dropped from 2m and Ball B is dropped from 5m. Which statement is correct?

A Both balls hit the ground with the same speed.
B Gravity does not act on the balls while they are falling.
C Ball B has more gravitational potential energy before being dropped.
D Ball A has more gravitational potential energy before being dropped.
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Worked Solution

Step 1: Gravitational potential energy (GPE) depends on height and mass. Step [2-9]: Since mass is identical, the ball at the greater height (Ball B) has more GPE.

Correct answer: Ball B has more gravitational potential energy before being dropped.

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