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IB Physics SL C 4 2 Nodes and Antinodes Questions

Practise IB Physics SL C.4.2 by identifying nodes, antinodes, amplitudes and phase relationships along standing waves in strings and pipes.

Syllabus
First assessment 2025
Course
Physics SL
Level
SL

Exam points

  • Identify nodes and antinodes from a standing-wave diagram or displacement pattern.
  • Relate amplitude and phase between points separated by nodes or antinodes.
  • Use wavelength and harmonic structure to locate nodes, antinodes and particle motion.

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Study C.4.2—Nodes and antinodes conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Physics SL C 4 2 Nodes and Antinodes Questions question 1

[Maximum number: 2]

Question (a)

(a)

The solid line represents the standing wave at time t and the dotted line represents the standing wave at an instant later. The dot is the equilibrium position of a particle P in the pipe. The up arrow indicates displacements to the right and the down arrow displacements to the left.

Figure for Question (a) — IB Physics SL

On the diagram, draw

[ 2 ]

Question (i)

(i)

a dot to indicate the approximate position of P at time t,

[ 1 ]

Question (ii)

(ii)

an arrow to indicate the velocity of P at time t.

[ 1 ]
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