Standard Science Primary 6 Interactions

Ravi dropped a feather and a hammer at the same time in a vacuum chamber (a space with no air). Which of the following observations is correct?

A Neither will hit the ground because there is no air.
B The hammer hits the ground first because it is heavier.
C The feather hits the ground first because it is lighter.
D Both hit the ground at the same time.
Show Worked Solution

Worked Solution

Step 1: Gravity acts on both objects. Step [2-9]: In a vacuum, there is no air resistance to slow the feather down. Step [2-9]: Therefore, both objects accelerate at the same rate and land together.

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

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