Connect Wavelength, Frequency and Wave Speed - Practice 1

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Learn the skill

For a periodic wave, speed equals frequency times wavelength. Match units so Hz means cycles/s and wavelength is meters per cycle. In a fixed medium, changing frequency can change wavelength while speed stays similar.

Worked example

A wave with frequency 5 Hz and wavelength 2 m has speed 10 m/s.

A schematic repeating wave shows 3 complete cycles about a center line. v = f x wavelength. No physical length or time scale is assigned to this drawing.

Question 1 A model wave has frequency 4 Hz and wavelength 2 m. What is its speed in m/s? Answer

Question 2 A model wave has frequency 5 Hz and wavelength 3 m. What is its speed in m/s? Answer

Question 3 A model wave has frequency 6 Hz and wavelength 4 m. What is its speed in m/s? Answer

Question 4 A model wave has frequency 7 Hz and wavelength 2 m. What is its speed in m/s? Answer

Question 5 A model wave has frequency 8 Hz and wavelength 3 m. What is its speed in m/s? Answer