Standard Science Primary 6 Interactions

Rey dropped a metal ball and a feather from the same height in a vacuum (where there is no air). Which statement is correct?

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

Worked Solution

Step 1: Air resistance is the force that usually slows down light objects like feathers. Step [2-9]: In a vacuum, air resistance is absent. Step [2-9]: Gravity pulls all objects with the same acceleration, so they hit the ground simultaneously.

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

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