DP Physics (first assessment 2025)

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Question 23M.2.SL.TZ2.1e

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.SL.TZ2.1e
Level SL Paper 2 Time zone TZ2
Command term Explain Question number e Adapted from N/A
e.
[Maximum mark: 2]
23M.2.SL.TZ2.1e
(e)

The maximum height reached by the bottle is greater with an air–water mixture than with only high-pressure air in the bottle.

Assume that the speed at which the propellant leaves the bottle is the same in both cases.

Explain why the bottle reaches a greater maximum height with an air–water mixture.

[2]

Markscheme

Mass «leaving the bottle per second» will be larger for air–water ✓

the momentum change/force is greater ✓

 

Allow opposite argument for air only

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