Wave Parameters on a String

00:00 1 marks

A wave travels along a string. The graph shows the variation of displacement with distance along the string at a particular instant. What is the amplitude and wavelength of the wave?

[VISUALIZATION: A sinusoidal graph of displacement (y-axis, labelled ‘Displacement / cm’) versus distance (x-axis, labelled ‘Distance / m’). The wave starts at (0,0), peaks at (0.5, 2), crosses zero at (1,0), reaches a trough at (1.5, -2), and crosses zero again at (2,0).]

A

Amplitude: 1 cm, Wavelength: 1.0 m
B

Amplitude: 1 cm, Wavelength: 2.0 m
C

Amplitude: 2 cm, Wavelength: 1.0 m
D

Amplitude: 2 cm, Wavelength: 2.0 m

Hint Hint

Hint

Identify the maximum displacement from the equilibrium (amplitude) and the horizontal distance over which the wave repeats (wavelength).

Answer Answer
Mark Scheme Mark Scheme
Explanation Explanation
Examiner Tips Examiner Tips
Common Errors Common Errors
Real World Context Real World Context

Answer Answer

Complete Answer

Amplitude: 2 cm, Wavelength: 2.0 m

Mark Scheme Mark Scheme

Answer Explanation Answer Explanation

Examiner Tips Examiner Tips

Common Errors Common Errors