DP Physics (first assessment 2025)

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Question EXE.2.HL.TZ0.ii

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.2.HL.TZ0.ii
Level HL Paper 2 Time zone TZ0
Command term Outline Question number ii Adapted from N/A
ii.
[Maximum mark: 1]
EXE.2.HL.TZ0.ii

No unbalanced external forces act on the system of the curling stones. Outline why the momentum of the system does not change during the collision.

[1]

Markscheme

From F=ΔpΔt, zero net force on the system implies that Δp=0

OR

From Newton’s third law, the impulse delivered to A is equal but opposite to the impulse delivered to B, hence Δp=0 for the system  ✓

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