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CAIE A-Level Physics AS 7.2.2 Graphical Representations of Transverse and Longitudinal Waves Questions

Represent transverse and longitudinal waves graphically and identify amplitude, wavelength and compression or rarefaction.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Represent transverse and longitudinal waves graphically and identify amplitude, wavelength and compression or rarefaction.

CAIE A-Level Physics AS 7.2.2 Graphical Representations of Transverse and Longitudinal Waves Questions question 1

[Maximum number: 4]

Question (a)

(a)

A progressive longitudinal wave travels through a medium from left to right. Fig. 4.1 shows the positions of some of the particles of the medium at time t0t_{0} and a graph showing the particle displacements at the same time t0t_{0}.

Fig. 4.1

Fig. 4.1

Particle displacements to the right of their equilibrium positions are shown as positive on the graph and particle displacements to the left are shown as negative on the graph.

The period of the wave is T.

[ 4 ]

Question (i)

(i)

On Fig. 4.1, sketch a line on the graph to represent the displacements of the particles for the longitudinal wave at time t0+T4t_{0}+\frac{T}{4}.

[ 3 ]

Question (ii)

(ii)

State the direction of motion of particle Z at time t0+T4t_{0}+\frac{T}{4}.

[ 1 ]
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