As a train of water waves goes by, a piece of cork floating on the water bobs up and down one complete cycle each second. The waves are 2 meters long. What is the speed of the wave?
A) 2 m/s
B) 4 m/s
C) 0.50 m/s
D) 0.25 m/s
E) 1.0 m/s

Question

Quizplus · Accepted Answer

The speed of the wave is calculated by multiplying the frequency of the wave by its wavelength. Given that the cork bobs up and down once per second (frequency = 1 Hz) and the wavelength is 2 meters, the speed of the wave is 1 Hz * 2 m = 2 m/s.

As a Train of Water Waves Goes By, a Piece