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Question 18M.2.SL.TZ2.a.ii

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.SL.TZ2.a.ii
Level SL Paper 2 Time zone TZ2
Command term Draw Question number a.ii Adapted from N/A
a.ii.
[Maximum mark: 1]
18M.2.SL.TZ2.a.ii

A loudspeaker emits sound towards the open end of a pipe. The other end is closed. A standing wave is formed in the pipe. The diagram represents the displacement of molecules of air in the pipe at an instant of time.

X and Y represent the equilibrium positions of two air molecules in the pipe. The arrow represents the velocity of the molecule at Y.

Draw an arrow on the diagram to represent the direction of motion of the molecule at X.

[1]

Markscheme

Horizontal arrow from X to the right

 

MP2 is dependent on MP1

Ignore length of arrow

[1 mark]

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