Advanced Science Primary 6 Interactions

Why does a parachutist fall more slowly when the parachute is open compared to when it is closed?

A The open parachute creates magnetic repulsion.
B The parachute is lighter than the person.
C The parachute has a larger surface area, increasing air resistance.
D Gravity is weaker on the parachute.
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Worked Solution

Step 1: Air resistance is a type of friction acting on objects moving through air. Step [2-9]: It increases with surface area. Step [2-9]: The open parachute has a huge surface area, increasing upward air resistance to oppose gravity.

Correct answer: The parachute has a larger surface area, increasing air resistance.

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