$A$ continuous disturbance is created on the surface of water in a ripple tank with a small piece of cork floating on it. Describe the motion of the cork. What does this tell us about the disturbance?

(N/A) The cork will move up and down at the same position while the waves travel outwards from the point of disturbance.
Thus,the cork is not carried away by the waves.
The motion of the cork indicates that the particles of the medium are vibrating at right angles to the direction of wave propagation.
This demonstrates that a wave involves the propagation of energy and not the physical transport of matter.