Lay a slinky on a table and secure one end to one edge of the table. Stretch the slinky across the length of the table and give the free end a quick push in the direction of the secured end. Answer the questions below. What type of wave was created? How do you know? Estimate the wavelength of the wave produced. Estimate the frequency of the wave produced. This is most easily estimated by counting the number of waves that pass the measuring device within a particular time interval as measured on your watch, or by counting the number of times the hand is shaken up and down. Compute the velocity of your wave.