Adaptive Practice
Waves
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⏱ 0:30
Easy
What is the SI unit of frequency in wave motion?
Easy
Which of the following waves require a medium to propagate?
Medium
If a wave has a wavelength of 0.5 m and frequency of 200 Hz, what is its speed?
Easy
In a transverse wave, the particles of the medium vibrate:
Medium
A string fixed at both ends vibrates in its fundamental mode with frequency f. What is the frequency of the second harmonic?
Easy
Which of the following correctly represents the relationship between wave speed (v), frequency (f), and wavelength (λ)?
Medium
A sound wave travels from air into water. Which of the following changes?
Medium
Two waves of the same frequency and amplitude interfere destructively. What is the resulting amplitude?
Medium
In the Doppler effect, if a source of sound moves towards a stationary observer, the observed frequency:
Hard
A wave on a string is described by y = 0.02 sin(40t - 5x), where y and x are in meters and t in seconds. What is the wavelength of the wave?