DP Physics (first assessment 2025)

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Question EXE.1A.SL.TZ0.12

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.SL.TZ0.12
Level SL Paper 1A Time zone TZ0
Command term Question number 12 Adapted from N/A
12.
[Maximum mark: 1]
EXE.1A.SL.TZ0.12

The density of an ideal gas is 1.4 kg m−3 when its pressure is 0.1 MPa.

What is the average translational speed of the gas molecules?


A.  0.46 m s−1

B.  270 m s−1

C.  460 m s−1

D.  71 km s−1

[1]

Markscheme

C

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