← Back to full paperPrevious questionNext question

Question 17

From Physics HL Paper 1A (May 2025, TZ2)

Grade your answerAnswer this question in practice mode and submit it for feedback.Practice under timed constraintsOpen the paper flow with timed full-exam navigation.
View source PDF page 10
  1. A transverse wave of period 20ms travels through a medium. The graph shows the variation of particle displacement with distance for the wave.
A graph plotting displacement in cm on the y-axis against distance in cm on the x-axis. The wave shows one full cycle starting at 0 displacement, peaking at 4.0 cm displacement at 5.0 cm distance, returning to 0 at 10.0 cm, reaching a trough of -4.0 cm at 15.0 cm, and returning to 0 at 20.0 cm. The x-axis extends to 25.0 cm and the y-axis from -5.0 cm to 5.0 cm.
A graph plotting displacement in cm on the y-axis against distance in cm on the x-axis. The wave shows one full cycle starting at 0 displacement, peaking at 4.0 cm displacement at 5.0 cm distance, returning to 0 at 10.0 cm, reaching a trough of -4.0 cm at 15.0 cm, and returning to 0 at 20.0 cm. The x-axis extends to 25.0 cm and the y-axis from -5.0 cm to 5.0 cm.

What is the average speed of the particle motion and the direction of particle motion relative to the direction of the wave travel during one cycle?

A table with two columns: 'Average speed of particle / ms⁻¹' and 'Direction of particle motion'. The rows correspond to options A, B, C, and D. Option A: 8, parallel. Option B: 8, perpendicular. Option C: 10, parallel. Option D: 10, perpendicular.
A table with two columns: 'Average speed of particle / ms⁻¹' and 'Direction of particle motion'. The rows correspond to options A, B, C, and D. Option A: 8, parallel. Option B: 8, perpendicular. Option C: 10, parallel. Option D: 10, perpendicular.
Average speed of particle / ms⁻¹Direction of particle motion
A.8parallel
B.8perpendicular
C.10parallel
D.10perpendicular

Textbook topics in this question

Review the exact course sections assessed by each question part.

Mixed-topic question