Physics · May / June 2018 · Paper 12 · Question 18
5054Particle model
A sealed packet containing air and a snack is purchased at an airport. The sealed packet is taken on board an aircraft. During the flight the packet becomes larger. What causes the packet to become larger?
- AThe density of the air inside the packet increases.
- BThe mass of the packet increases.
- CThe pressure of the air outside the packet decreases.
- DThe volume of the air inside the packet decreases.
As printed in the paper
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Correct answer: C. The pressure of the air outside the packet decreases.
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