Standard Science Primary 6 Interactions

Michael drops a metal ball and a feather at the same time in a vacuum (an environment with no air). Which statement is correct?

A The feather hits the ground first.
B The metal ball hits the ground first.
C Neither will fall because there is no air.
D Both hit the ground at the same time.
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Worked Solution

Step 1: Gravity acts on both objects. Step [2-9]: In a vacuum, there is no air resistance. Step [2-9]: Without air resistance, all objects fall at the same rate regardless of mass.

Correct answer: Both hit the ground at the same time.

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